Vegan Zucchini and Smoked Tofu Parmigiana, Reinterpreted | Parmigiana di Zucchine e Tofu Affumicato Rivisitata
Parmigiana di zucchine is the lighter summer sister of the eggplant parmigiana, cooked in many homes of southern Italy when the gardens overflow with zucchini. The classic is layered with fior di latte or smoked provola and grated Parmigiano Reggiano; this vegan version is a reinterpretation that builds it with roasted zucchini ribbons, thin slices of smoked tofu in place of the smoked provola of the south, a basil tomato sauce and a silky béchamel made from silken tofu and olive oil. Every element is cooked separately to control its water, so the layers bake into a firm, sliceable dish with a gentle smoky depth. It is a complete main course, rich in plant protein, that stays true to the logic of the Italian parmigiana.
Yield: 6 servings. Prep: 50 minutes, plus 30 minutes salting. Cook: 1 hour 15 minutes. Rest: 40 minutes. Course: secondo piatto or piatto unico. Region: inspired by the parmigiana di zucchine of southern Italy.
The Story
In Italy, "alla parmigiana" is first of all a method: vegetables cooked, then layered with tomato sauce, basil and cheese and baked until they become one. The most famous is the eggplant parmigiana of Campania and Sicily, whose origin and name are still debated, but the same method has always been applied to other vegetables of the season. Zucchini, cheaper and more abundant than eggplant in early summer, became the base of a lighter parmigiana cooked in countless southern Italian homes.
The zucchini, like the tomato, came to Europe from the Americas, but its modern form owes a great deal to Italy. The long, slender summer squash eaten young was developed by Italian growers, and the very word zucchini, now used across the English-speaking world, is Italian: the diminutive of zucca, squash. Italian markets still sell many regional types, from the pale, ribbed Romanesco zucchini of Lazio to round zucchini and long, pale green varieties.
In the south, the home zucchini parmigiana changes from family to family. The slices may be fried plain or in batter, grilled or roasted; the cheese of the traditional versions may be fior di latte, smoked provola or Parmigiano Reggiano grated between the layers, and some cooks add a little béchamel to make it softer. It is a dish of the summer table, often prepared in the cool of the morning and eaten at room temperature at lunch.
This version is not a traditional recipe, and it does not pretend to be one. Tofu is an ingredient of Chinese origin, now made around the world, and here it does two jobs: thin slices of smoked tofu bring the smoky, savory note of the provola, and silken tofu blended with olive oil, nutmeg and a little lemon gives a creamy béchamel without dairy. The structure, the sauce and the care for each layer come from the Italian parmigiana, and they make this vegan dish complete and balanced.
Ingredients
Choose small to medium zucchini, about 8 inches (20 cm) long, firm and glossy, with no soft spots: large ones are watery and full of seeds. Smoked tofu is sold vacuum packed; choose a firm, naturally smoked one with a short ingredient list. For the béchamel use silken tofu, the soft type sold in aseptic boxes or water, which blends into a perfect cream. Use good whole peeled Italian tomatoes for the sauce.
For the zucchini
Zucchini, small to medium, 3 lb (1.4 kg), about 6
Fine sea salt, for salting, 2 tsp (12 g)
Extra virgin olive oil, 1/4 cup (60 ml)
Freshly ground black pepper, 1 pinch
For the smoked tofu
Smoked firm tofu, 14 oz (400 g)
Extra virgin olive oil, 1 tbsp (15 ml)
For the tomato and basil sauce
Whole peeled Italian tomatoes, 1 can of 28 oz (800 g)
Extra virgin olive oil, 3 tbsp (45 ml)
Shallot, finely chopped, 1/3 cup (50 g)
Garlic, 1 clove, crushed
Fresh basil, 1 bunch, about 3/4 oz (20 g)
Fine sea salt, 1 tsp (6 g)
For the tofu béchamel
Silken tofu, 12 oz (340 g)
Unsweetened oat milk, 1/2 cup (120 ml)
Extra virgin olive oil, mild, 3 tbsp (45 ml)
Cornstarch, 1 tbsp (8 g)
Nutritional yeast flakes, 2 tbsp (8 g)
Fresh lemon juice, 1 tsp (5 ml)
Fine sea salt, 3/4 tsp (4 g)
Freshly grated nutmeg, 1 pinch
For the topping
Dry breadcrumbs, 1/2 cup (30 g)
Nutritional yeast flakes, 2 tbsp (8 g)
Extra virgin olive oil, 1 tbsp (15 ml)
Fresh basil leaves, to finish
Preparation
Step 1
Slice and salt the zucchini. Trim the zucchini and cut them lengthwise into ribbons 1/4 inch (6 mm) thick with a sharp knife or a mandoline. Spread them on trays lined with kitchen towels, sprinkle them evenly with the fine salt and leave them for 30 minutes. Drops of water will appear on the surface. Pat the ribbons very dry with more towels, pressing firmly. Zucchini are about 95 percent water; salting draws a good part of it out before cooking, so the slices roast faster, take color and do not flood the baking dish later.
Step 2
Roast the zucchini. Heat the oven to 450°F (230°C). Brush two large sheet pans lined with parchment with some of the olive oil, lay the ribbons in a single layer without overlapping and brush the tops with the rest of the oil. Roast for 14 to 18 minutes, turning the pans halfway, until the ribbons are tender, lightly golden at the edges and reduced in thickness. Season with pepper. High, dry heat evaporates water fast and concentrates the natural sugars of the zucchini; crowded pans would steam them instead and leave them pale and limp.
Step 3
Make the tomato and basil sauce. Crush the tomatoes by hand. In a wide pan, cook the shallot and garlic in the olive oil over medium low heat for 5 minutes, until soft, then remove the garlic. Add the tomatoes, the salt and a few basil leaves and simmer uncovered for 30 to 35 minutes, until the sauce is thick and glossy and holds a line drawn with a spoon. Tear in the remaining basil off the heat. Zucchini release more water than eggplant even after roasting, so the sauce must be especially dense: this is the main control of moisture in the whole dish.
Step 4
Slice and sear the smoked tofu. Pat the tofu dry and cut it into slices 1/8 inch (3 mm) thick. Heat the olive oil in a nonstick skillet over medium high heat and sear the slices for 1 minute per side, until lightly golden. Transfer them to a plate. A quick sear firms the surface and intensifies the smoky aroma; very thin slices melt into the layers instead of standing apart as solid blocks, the way smoked provola melts into a traditional parmigiana.
Step 5
Make the tofu béchamel. Put the silken tofu, oat milk, olive oil, cornstarch, nutritional yeast, lemon juice, salt and nutmeg in a blender and blend for 1 minute, until completely smooth. Pour it into a small saucepan and cook over medium heat, whisking constantly, for 3 to 4 minutes, until it thickens to the texture of a classic béchamel and coats the back of a spoon. Silken tofu brings protein that sets lightly with heat, the cornstarch gives the smooth, spoonable body of a roux-based sauce, and the nutmeg is the classic Italian seasoning of béchamel.
Step 6
Assemble the parmigiana. Lower the oven to 375°F (190°C). Spread 1/2 cup (120 ml) of sauce on the bottom of an 8 by 11 inch (20 by 28 cm) baking dish. Arrange a layer of zucchini ribbons, slightly overlapping, then a thin film of sauce, a layer of smoked tofu slices, a few spoonfuls of béchamel spread thinly and a few basil leaves. Repeat three or four times, pressing each layer gently, and finish with zucchini, sauce and the remaining béchamel. Mix the breadcrumbs, nutritional yeast and olive oil and scatter them evenly over the top.
Step 7
Bake and rest. Bake for 35 to 40 minutes, until the edges bubble and the top is golden. Let the parmigiana rest for at least 40 minutes before cutting. During the rest the béchamel sets, the zucchini reabsorb some of the juices and the layers bind together. If you cut too early, the soft layers of zucchini slide apart. Before serving, scatter fresh basil leaves over the top.
Plating
Serve the parmigiana warm, at about 120°F (50°C), or at room temperature in the hot months, as is common in southern Italy. Cut it into neat squares with a sharp knife and lift each portion with a wide spatula onto a warm plate, turning it so the green and red layers show on the side.
Spoon a little warm tomato sauce beside the portion and finish with a fresh basil leaf, a drop of extra virgin olive oil and a turn of black pepper. A simple salad of arugula with lemon makes a good companion. The guest eats it with a fork: each bite should give the sweetness of the zucchini, the smoke of the tofu and the creaminess of the béchamel together. For a buffet or a summer lunch, cut the parmigiana into smaller squares, about 2 inches (5 cm), and serve them at room temperature on a large platter with basil leaves scattered between them.
Professional Technique
The key number is the oven temperature for the zucchini: 450°F (230°C). Zucchini must lose water before they meet the sauce, and only high heat does this quickly enough to brown them before they collapse. Roasted ribbons should lose about a third of their weight; if they are still bright green and stiff, roast them a few minutes more. Weighing one pan before and after roasting the first time you make the dish is the simplest way to learn what the right reduction looks like; after that, the eye is enough: the ribbons should bend without breaking and show golden spots along the edges.
The hidden variable is the size of the zucchini. Large, mature zucchini have a spongy, seedy core that holds water and turns to mush in the oven. Small to medium ones, with firm flesh and tiny seeds, keep their structure through two cookings. If you only find large zucchini, cut away the seedy center before slicing. Season matters too: early summer zucchini are sweet and compact, while those harvested at the end of a hot, dry summer can be slightly bitter and fibrous, and they need a little more salt and a longer roast.
The doneness test is the edge and the center. The sauce should bubble thickly at the sides of the dish, the breadcrumb top should be evenly golden, and a knife pushed into the center should meet no resistance. After the rest, the cut portion must stand upright and leave no pool of liquid on the plate.
Moisture Control
Zucchini are the wettest vegetable used in a parmigiana, so this dish is built entirely around water management. Salting removes the first part, roasting removes the second, and a dense sauce prevents any more from being added. Each of these steps is small; together they make the difference between a sliceable parmigiana and a watery one.
The béchamel also plays a role. Thickened with cornstarch and set by the tofu protein, it binds the layers like a light custard and absorbs part of the juice released during baking. Spread it thinly, about 3 tablespoons per layer: a thick layer would separate the zucchini and make the portion unstable. Use it warm, when it spreads easily; once cold, it sets into a firm cream that tears the delicate zucchini ribbons.
The smoked tofu, by contrast, adds no water at all. Its dense, pressed texture absorbs a little of the sauce and gives structure to each layer. Slicing it very thin is essential: thick slices stay firm and rubbery, while thin ones soften and become part of the dish.
Professional Mise en Place
All the components can be prepared up to a day ahead, which makes this a practical dish for a dinner. Assemble it in the morning, refrigerate it and bake it in the evening, adding 10 minutes to the baking time.
Equipment and tools
Sharp chef's knife or mandoline, kitchen towels, two large sheet pans, parchment, pastry brush
Wide pan for the sauce, nonstick skillet for the tofu
Blender, small saucepan and whisk for the béchamel
8 by 11 inch (20 by 28 cm) baking dish, wide spatula
Prepared ahead
Zucchini salted, dried and roasted, up to 1 day ahead, refrigerated
Tomato sauce cooked, up to 3 days ahead
Smoked tofu sliced and seared, up to 1 day ahead
Tofu béchamel cooked, up to 1 day ahead, covered with parchment on the surface
Service setup
Parmigiana rested at least 40 minutes, cut into portions
Warm plates and a small pan of warm sauce
Fresh basil, extra virgin olive oil and pepper at the pass
Chef Tips
Use two colors of zucchini when available, green and yellow, alternating them in the layers. The flavor is the same, but the cut portion looks brighter and more elegant.
If your smoked tofu is very strongly smoked, use only half and replace the rest with plain firm tofu, sliced and seared the same way. The smoke should support the zucchini, not overpower them.
Add the fresh aroma of mint, a classic companion of zucchini in Campania and Sicily: tear a few mint leaves together with the basil into the sauce at the end. It brightens the dish, especially when served at room temperature.
Keep any leftover roasted zucchini ribbons. Dressed with olive oil, garlic, mint and a few drops of vinegar, they make an excellent zucchini alla scapece-style side dish, in the spirit of the Neapolitan marinated zucchini.
Common Mistakes
Using large, seedy zucchini. They hold water and collapse in the oven. Choose small to medium, firm zucchini.
Skipping the salting. Unsalted zucchini release their water in the baking dish. Salt them for 30 minutes and dry them well.
Crowding the pans. Overlapping ribbons steam instead of roasting. Use two pans and a single layer.
Cutting the tofu thick. Thick slices stay rubbery and separate from the layers. Slice it 1/8 inch (3 mm) thin.
Using a thin sauce. A loose sauce plus watery zucchini makes soup. Reduce it until it holds a line.
Spreading too much béchamel. Thick layers make the portion unstable. Use about 3 tablespoons per layer.
Cutting it hot. The layers have not set yet and slide apart. Rest it at least 40 minutes.
Wine Pairing
Fiano di Avellino DOCG: A white from the hills of Irpinia in Campania, with notes of pear, hazelnut and a gentle smoky hint. Its texture matches the creamy béchamel and its smoky note echoes the tofu. Serve it at about 52°F (11°C).
Vermentino di Gallura DOCG: From northern Sardinia, a white with Mediterranean herbs, citrus and a saline finish. Its herbal freshness suits the zucchini, basil and mint. Serve it at about 50°F (10°C).
Cerasuolo d'Abruzzo DOC: A deep rosé from Montepulciano grapes, with cherry fruit and lively acidity. It has enough body for the smoked tofu and enough freshness for the tomato sauce. Serve it at about 54°F (12°C).
Romagna Sangiovese DOC: A medium bodied red from Emilia-Romagna with red cherry and soft tannins. Lightly chilled, it balances the tomato without overwhelming the delicate zucchini. Serve it at about 59°F (15°C).
Storage & Reheating
Refrigerator: keep the parmigiana covered for up to 3 days. It firms up when cold and slices cleanly. Freezer: not recommended, because zucchini release a lot of water when thawed and the layers lose their texture; freeze only the tomato sauce, which keeps 3 months. Cool the dish at room temperature for no more than 2 hours before refrigerating.
Reheat portions in the oven at 325°F (165°C), uncovered, for 15 to 20 minutes, until warm through, or serve them at room temperature after 45 minutes out of the refrigerator. In the microwave, heat at 50 percent power for 2 minutes, then rest 1 minute; high power makes the zucchini watery.
Nutrition
Per serving, based on 6 servings:
Calories: 360 kcal
Total Fat: 24 g
Saturated Fat: 3 g
Trans Fat: 0 g
Unsaturated Fat: 21 g
Cholesterol: 0 mg
Sodium: 780 mg
Total Carbohydrates: 22 g
Fiber: 5 g
Total Sugars: 10 g
Added Sugars: 0 g
Protein: 19 g
Principal micronutrients: vitamin C, potassium, calcium, iron, manganese, vitamin B6
These figures are estimates, calculated on the quantities listed and rounded to the nearest whole number, assuming that most of the salting salt is removed with the water of the zucchini. They vary with the size of the zucchini and the brand of tofu.
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