Eggplant Lasagna

There’s something deeply comforting about a bubbling casserole that layers tender vegetables, creamy cheese, and bright tomato sauce. This Eggplant Lasagna swaps traditional pasta sheets for thin slices of roasted eggplant, turning a classic into a lighter, vegetable-forward meal that still delivers on richness and nostalgia. The flavors are familiar—garlicky tomato sauce, herb-balanced mozzarella, and a lush ricotta filling—yet the texture is uniquely satisfying. Whether you’re cooking for company or just craving a cozy weeknight dinner, this dish is a winner.

Why you’ll love this version

This recipe streamlines the process so you can spend more time enjoying the meal than fussing in the kitchen. Eggplant slices are roasted until tender and slightly caramelized, which gives the lasagna structure and a subtle sweetness. The tomato sauce is simple but flavorful: aromatic onions and garlic, a touch of green bell pepper, mushrooms for umami, and classic Italian dried herbs. A ricotta mixture with egg and Parmesan lends creaminess, while a final showering of mozzarella melts into a golden blanket. The result tastes like lasagna but feels lighter and fresher.

Ingredients

• 2 eggplants
• 2 teaspoons kosher salt
• 1 tablespoon olive oil
• 1 tablespoon butter
• 3 teaspoons minced garlic
• 1 medium yellow onion, chopped
• ½ green bell pepper, chopped
• 4 oz. baby Bella mushrooms, sliced
• 20 oz. crushed tomatoes
• 1.5 teaspoons Italian seasoning
• ½ teaspoon dried oregano
• ½ teaspoon black pepper
• ½ teaspoons salt
• 16 oz. ricotta cheese
• 1 large egg
• ½ cup Parmesan cheese
• 2 cups mozzarella cheese
• Parsley for garnish

Equipment

• Baking sheet
• Large skillet
• 9×13-inch baking dish (or similar)
• Mixing bowls
• Spoon and spatula
• Sharp knife and cutting board

Prep tips before you begin

Preheat your oven and line a baking sheet so the eggplant slices roast evenly. Slice the eggplants uniformly so they cook at the same rate—about ¼-inch thick works well. Drain excess liquid from the sliced eggplant by sprinkling them with the kosher salt and letting them rest for 20–30 minutes; then pat dry. This step reduces bitterness and prevents a watery lasagna. While the eggplant rests, chop the onion, bell pepper, and mushrooms, and measure out the cheeses and seasonings so assembly goes smoothly.

Step-by-step Instructions

1. Prepare the eggplant: Slice 2 eggplants into ¼-inch thick rounds. Place the slices in a single layer on a baking sheet and sprinkle both sides lightly with 2 teaspoons kosher salt. Let the salted eggplant sit for 20–30 minutes to draw out moisture. After resting, rinse the salt off briefly and pat the slices dry with paper towels.
2. Roast the eggplant: Preheat your oven to 425°F (220°C). Arrange the dried eggplant slices on the baking sheet in a single layer and brush or spray lightly with a bit of olive oil. Roast for 12–18 minutes, flipping once halfway through, until the slices are golden at the edges and tender. Remove from the oven and set aside.
3. Make the sauce base: In a large skillet over medium heat, add 1 tablespoon olive oil and 1 tablespoon butter. Once the butter has melted and the pan is hot, add 1 medium yellow onion (chopped) and ½ green bell pepper (chopped). Sauté for 5–7 minutes, stirring occasionally, until the onion becomes translucent and the pepper softens.
4. Add mushrooms and garlic: Add 4 oz. baby Bella mushrooms (sliced) to the skillet and cook another 4–5 minutes until the mushrooms release their moisture and begin to brown. Stir in 3 teaspoons minced garlic and cook for about 30–60 seconds until fragrant, taking care not to let the garlic burn.
5. Finish the tomato sauce: Pour in 20 oz. crushed tomatoes, then season with 1.5 teaspoons Italian seasoning, ½ teaspoon dried oregano, ½ teaspoon black pepper, and ½ teaspoons salt. Stir to combine. Bring the sauce to a gentle simmer, reduce the heat to low, and let it cook for 8–10 minutes so the flavors meld. Taste and adjust seasoning if needed.
6. Prepare the ricotta filling: In a mixing bowl, combine 16 oz. ricotta cheese with 1 large egg and ½ cup Parmesan cheese. Stir until smooth and homogenous. This mixture should be creamy and slightly thick; the egg helps bind it so the layers hold together when sliced.
7. Assemble the lasagna: Lower the oven temperature to 375°F (190°C). In a 9×13-inch baking dish, spread a thin layer of the tomato sauce across the bottom to prevent sticking. Arrange a single layer of roasted eggplant slices over the sauce, overlapping slightly if needed. Dollop about one-third of the ricotta mixture over the eggplant and spread gently to form a thin, even layer. Spoon one-third of the tomato sauce over the ricotta layer, then sprinkle about one-third of the mozzarella cheese evenly on top.
8. Repeat layers: Add another layer of roasted eggplant slices, followed by the remaining ricotta mixture divided into thirds, another third of the tomato sauce, and another one-third of the mozzarella. Repeat one more time: a final eggplant layer, the last of the ricotta, the remaining tomato sauce, and the remaining mozzarella. If you prefer a cheesier top, reserve a small handful of mozzarella to sprinkle right before baking.
9. Bake until bubbly: Cover the baking dish loosely with foil and bake at 375°F (190°C) for 20 minutes. Remove the foil and continue baking for an additional 10–15 minutes, or until the top is bubbly and the cheese is golden in spots. If the cheese is browning too quickly, tent the foil back over the dish.
10. Rest, garnish, and serve: Remove the lasagna from the oven and let it rest for 10–15 minutes before slicing. Resting helps the layers set so slices hold together. Garnish with chopped parsley to add a fresh, colorful finish. Serve warm with a simple green salad or crusty bread for a complete meal.

Troubleshooting & tips for success

• Eggplant moisture: Salting and drying the eggplant before roasting prevents the lasagna from becoming watery. Be sure to pat slices thoroughly after salting.
• Uniform slices: Use a sharp knife or a mandoline to get evenly sized rounds so they cook at the same rate.
• Ricotta texture: If your ricotta is very wet, drain it in a fine-mesh sieve for 10–15 minutes to avoid excess moisture in the filling.
• Make-ahead: Assemble the lasagna up to a day in advance, cover, and refrigerate. Add an extra 10–15 minutes of baking time if baking straight from the fridge.
• Freezing: Fully assembled but unbaked lasagna freezes well. Wrap tightly and freeze for up to 2 months. Bake from frozen at 375°F (190°C), covered, for about 60–75 minutes, then uncover and bake until bubbly and golden.

Serving suggestions

Serve slices of this Eggplant Lasagna with a crisp green salad tossed in a bright lemon vinaigrette or a bed of peppery arugula. A chunk of rustic bread or garlic-herb flatbread is perfect for sopping up any leftover sauce. For a lighter side, try steamed broccoli or a simple tomato and cucumber salad with a drizzle of olive oil.

Storage

Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat individual portions in the microwave or rewarm slices in a 350°F (175°C) oven for 10–15 minutes until heated through. If frozen, thaw overnight in the refrigerator before reheating for best texture.

Final thoughts

This Eggplant Lasagna is a satisfying, flavorful twist on the classic that highlights the natural richness of eggplant while delivering the comforting, cheesy layers we all love. It’s straightforward to prepare, pleasing to a crowd, and makes excellent leftovers. The combination of roasted eggplant, a bright tomato-herb sauce, and a creamy ricotta layer topped with gooey mozzarella creates a memorable main course that’s both homey and elegant. Give it a try the next time you want lasagna without the noodles—it’s likely to become a regular in your rotation.

Enjoy the warm, layered goodness and don’t forget to garnish with a sprinkle of parsley for a fresh finish.

Eggplant Lasagna

A hearty, low-carb lasagna that layers roasted eggplant with a savory tomato-mushroom sauce and creamy ricotta.

Print Recipe Pin Recipe

Prep Time 25 minutes mins

Cook Time 30 minutes mins

Total Time 55 minutes mins

Servings: 5 servings

Ingredients Equipment Method Notes

Ingredients

  

• 2 eggplants
• 2 teaspoons kosher salt
• 1 tablespoon olive oil
• 1 tablespoon butter
• 3 teaspoons minced garlic
• 1 medium yellow onion chopped
• 1/2 cup green bell pepper chopped
• 4 oz baby Bella mushrooms sliced
• 20 oz crushed tomatoes
• 1.5 teaspoons Italian seasoning
• 1/2 teaspoon dried oregano
• 1/2 teaspoon black pepper
• 1/2 teaspoon salt
• 16 oz ricotta cheese
• 1 large egg
• 1/2 cup Parmesan cheese
• 2 cups mozzarella cheese
• parsley for garnish

Equipment

• Baking Sheet
• Cooling rack
• Large Skillet
• Mixing Bowl
• 13 x 9-inch baking dish
• Aluminum Foil

Method

 

1. Trim the ends of each eggplant and, if desired, peel the skin. Slice lengthwise into about 1/4-inch thick slices.
2. Arrange slices in a single layer on a cooling rack set over a baking sheet, sprinkle both sides with 2 teaspoons kosher salt, and let sit for 30 minutes to draw out moisture.
3. Pat the eggplant slices dry with paper towels. Alternatively, place salted slices on a baking sheet and bake at 375°F until slightly softened, about 20 minutes.
4. Preheat oven to 375°F (if you used the baking alternative earlier, keep the oven temperature).
5. Heat 1 tablespoon olive oil and 1 tablespoon butter in a large skillet over medium heat. Add 3 teaspoons minced garlic, the chopped onion, and chopped green pepper; sauté 3–4 minutes until softened.
6. Add 4 oz sliced baby Bella mushrooms and cook until the mushrooms soften, about 3–4 minutes.
7. Stir in 20 oz crushed tomatoes, 1.5 teaspoons Italian seasoning, 1/2 teaspoon dried oregano, 1/2 teaspoon black pepper, and 1/2 teaspoon salt; heat through and then set the sauce aside.
8. In a medium bowl, mix 16 oz ricotta cheese with 1 large egg and 1/2 cup Parmesan until combined.
9. Spread a thin layer of the tomato-mushroom sauce on the bottom of a 13 x 9-inch baking dish.
10. Place about 6 eggplant slices in a single layer over the sauce, spread half of the ricotta mixture over the eggplant, and sprinkle with one-third of the 2 cups shredded mozzarella.
11. Repeat the layer: another layer of eggplant, the remaining ricotta mixture, and another one-third of the mozzarella.
12. Top with the remaining eggplant slices, spread remaining sauce over them, and sprinkle with the last third of the mozzarella.
13. Cover the dish with aluminum foil and bake at 375°F for 25 minutes. Remove the foil and bake a few more minutes until the cheese is melted and bubbly.
14. Let the lasagna cool for 10 minutes, garnish with parsley, slice, and serve.

Notes

• This lasagna is equally delicious the next day.
• Store any leftovers in a covered container in the fridge for up to 3 days.