Grilled Aubergine Parmigiana with Basil Tomato Sauce

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Grilled aubergine parmigiana is the classic Italian bake with the frying step swapped for a grill pan or outdoor grill. You brush 1 cm slices with olive oil, grill them until tender, then layer them with basil tomato sauce, mozzarella, and parmesan.

I favor grilling because the slices pick up smoky edges and need a fraction of the oil that shallow-frying takes. The dish comes together in about 75 minutes, and most of that is hands-off simmering and baking.

One judgment call matters more than any other. Grill the slices until they’re fully soft and bend without cracking. Pale, squeaky slices turn leathery in the oven and leave the dish watery.

It eats like a full meal with a green salad, and the leftovers slice cleaner the next day.

Why You’ll Love This Recipe

• Grilling replaces frying, so the slices stay light
• Sauce simmers while the aubergine grills, saving time
• Assemble a day ahead and bake when ready
• Gluten free with no breadcrumb or flour layer

Ingredient Notes

• aubergines: Choose firm, glossy aubergines that feel heavy for their size. Zucchini cut lengthwise at the same 1 cm thickness works as a swap, and it needs only 2 to 3 minutes per side on the grill.
• fresh mozzarella: Tear it and pat it dry so it doesn’t thin the sauce. Low-moisture shredded mozzarella in the same weight melts more evenly and browns a bit more.
• parmesan: Traditional Parmigiano Reggiano uses animal rennet. To keep it vegetarian, use a hard Italian-style cheese labeled vegetarian, such as an aged pecorino-style or grana-style alternative.
• crushed tomatoes: Canned crushed tomatoes give a thicker base than passata. If you use passata, add 5 minutes to the simmer so the sauce reduces to the same consistency.
• fresh basil: Half goes into the sauce and half onto the finished dish. If you only have dried herbs, stir 1 tsp dried oregano into the sauce and skip the garnish.

Grilled Aubergine Parmigiana with Basil Tomato Sauce

Layers of grilled aubergine, basil tomato sauce, mozzarella, and parmesan, baked until bubbling. Serves 4 and keeps well for meal prep.

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Prep Time 15 minutes mins

Cook Time 50 minutes mins

Total Time 1 hour hr 15 minutes mins

Servings: 4 servings

Course: Main Course

Cuisine: Italian

Calories: 304

Ingredients Method Notes

Ingredients

  

Grilled aubergine

• 1 kg aubergines (eggplants) / 2.2 lb (about 3 large); sliced lengthwise 1 cm / 1/2 inch thick
• 4 tbsp olive oil / 60 ml; for brushing
• 1/2 tsp fine sea salt
• 1/4 tsp black pepper freshly ground

Basil tomato sauce

• 2 tbsp olive oil
• 3 cloves garlic thinly sliced
• 1/4 tsp red pepper flakes
• 800 g crushed tomatoes (two 400 g cans)
• 1/2 tsp fine sea salt
• 20 g fresh basil leaves divided; half for the sauce, half for topping

Cheese layers

• 250 g fresh mozzarella torn and patted dry
• 60 g parmesan finely grated, about 1 cup

Method

 

Make the sauce

1. Warm 2 tbsp olive oil in a 3-quart / 2.8 L saucepan over medium heat. Add the garlic and pepper flakes and cook for 30 to 60 seconds until fragrant but not browned.
2. Add the crushed tomatoes and 1/2 tsp salt. Simmer gently for 15 minutes, stirring now and then, until the sauce leaves a trail when you drag a spoon across the bottom. Stir in half the basil, torn, and take the pan off the heat.

Grill the aubergine

1. While the sauce simmers, brush both sides of the aubergine slices with the 60 ml olive oil and season with 1/2 tsp salt and the pepper. Heat a 36 cm / 14-inch ridged grill pan or outdoor grill over medium-high until very hot.
2. Grill the slices in 3 batches, about 7 or 8 slices at a time, for 3 to 4 minutes per side. Pull them when they have dark grill marks, are fully soft, and bend without cracking. Pale slices that still squeak will turn leathery in the oven and release water. Start heating the oven to 200 C / 390 F when the last batch goes on.

Layer and bake

1. Spread about 120 ml / 1/2 cup of the sauce over the bottom of a 23 x 33 cm / 9 x 13-inch baking dish. Add a layer of aubergine, overlapping the slices slightly, then top with a third of the remaining sauce, a third of the mozzarella, and a third of the parmesan. Repeat twice more, ending with cheese on top.
2. Bake uncovered for 25 minutes, until the sauce bubbles at the edges and the mozzarella is melted with golden spots. Rest for 10 minutes, scatter the remaining basil over the top, and cut into 4 squares.

Notes

• Start the sauce first, then grill while it simmers to save time.
• Grill until slices bend without cracking, otherwise the bake turns watery.
• Cook the aubergine in three batches so the slices sear instead of steam.
• Rest the baked dish 10 minutes so the layers set before cutting.
• Use a vegetarian-labeled hard cheese in place of parmesan to keep it vegetarian.

Tips for Success

• Cut the aubergine slices 1 cm / 1/2 inch thick, no thinner, so they survive the grill and hold their shape in the layers.
• Grill in three batches so the slices sear instead of steam, and let the pan come back to full heat between rounds.
• Grill each slice until it’s fully soft and bends without cracking, because underdone slices turn leathery and release water in the oven.
• Pat the torn mozzarella dry with a paper towel before layering so it doesn’t loosen the sauce as it melts.
• Rest the baked dish for 10 minutes before cutting so the layers set and the squares lift out in one piece.

Variations

• Swap half the mozzarella for smoked scamorza to add a campfire note that echoes the grilled slices.
• Spread 150 g of ricotta mixed with lemon zest between the second and third aubergine layers for a creamier middle.
• Mix 3 tbsp toasted breadcrumbs with the top layer of parmesan for a crisp crust, though this removes the gluten-free status.

Storage and Reheating

Grilled aubergine parmigiana keeps 4 days in an airtight container in the fridge. The layers firm up as it chills, so cold squares slice cleaner than hot ones.

Reheat covered with foil at 180 C / 350 F for 15 to 20 minutes until hot in the center, then uncover for the last 5 minutes to re-crisp the cheese. A single portion takes about 2 minutes in the microwave at 70 percent power.

It freezes well for up to 2 months, wrapped as individual squares or left in the dish. Thaw overnight in the fridge before reheating. You can also assemble it unbaked, refrigerate it up to 24 hours, and bake it for 30 to 35 minutes.

Serving Suggestions

Cut the dish into 4 generous squares and serve warm, not piping hot. A few minutes of cooling lets the sauce settle and the flavors come forward.

A peppery arugula salad dressed with lemon juice and olive oil is my default side, since it cuts the richness of the cheese. Crusty bread handles the sauce left on the plate.

For a heavier dinner, add garlicky white beans or buttered orzo. A glass of medium-bodied red like Chianti suits it well.

FAQ

Why is my grilled aubergine parmigiana watery?

Usually the aubergine slices came off the grill underdone, or the sauce was too thin. Grill the slices until they’re fully soft and bend without cracking, simmer the sauce about 15 minutes until it leaves a trail behind a spoon, and pat the mozzarella dry. Then rest the baked dish 10 minutes before cutting.

Can I use shredded mozzarella instead of fresh in grilled aubergine parmigiana?

Yes, use the same 250 g of low-moisture shredded mozzarella. It melts into a more even, golden layer and releases less water than fresh. You lose the milky, stretchy pockets, so I’d keep a few torn fresh pieces for the top layer if you have them.

Can I assemble grilled aubergine parmigiana the day before and bake it later?

Yes. Assemble it fully, cover tightly, and refrigerate for up to 24 hours. Bake it straight from the fridge at 200 C / 390 F for 30 to 35 minutes, until the edges bubble and the center is hot. Rest it 10 minutes before cutting, same as a fresh bake.

What do I serve with grilled aubergine parmigiana for a full dinner?

A peppery arugula salad with lemon and olive oil cuts the richness best. Crusty bread covers the sauce left on the plate, and garlicky white beans or buttered orzo make it more filling if you want a heavier dinner.

Is grilled aubergine parmigiana vegetarian and gluten free?

It’s gluten free as written, since there’s no breadcrumb or flour layer. Vegetarian depends on the parmesan: traditional Parmigiano Reggiano uses animal rennet, so choose a hard Italian-style cheese labeled vegetarian. Check the mozzarella label too, since some brands also use animal rennet.

What is the difference between aubergine parmigiana and eggplant parmesan?

They’re the same family of dish with different habits. Italian melanzane alla parmigiana layers unbreaded fried slices with tomato, cheese, and basil. American eggplant parmesan usually breads and fries the slices and often comes over spaghetti. This version grills unbreaded slices, so it sits closer to the Italian original with less oil.

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