Ingredients
Method
Prep the Vegetables
- Slice zucchini and eggplant into 1/4-inch thick rounds. Lay them on paper towels and sprinkle both sides with 2 teaspoons kosher salt. Let sit for 30 minutes to draw out moisture.
- Preheat oven to 425°F. Line two large baking sheets with parchment paper.
- Pat the salted vegetables dry with paper towels. Arrange zucchini, eggplant, bell peppers, and mushrooms on the baking sheets. Drizzle with 2 tablespoons olive oil and toss to coat.
- Roast for 20-25 minutes until vegetables are tender and lightly browned. Remove and set aside. Reduce oven temperature to 375°F.
Make the Sauce
- Heat 1 tablespoon olive oil in a large saucepan over medium heat. Add diced onion and cook for 5 minutes until softened.
- Add minced garlic and cook for 1 minute until fragrant.
- Stir in tomato paste and cook for 2 minutes. Add crushed tomatoes, oregano, basil, salt, and pepper.
- Simmer for 15 minutes, stirring occasionally, until sauce thickens slightly. Taste and adjust seasoning.
Prepare Cheese Mixture and Pasta
- Cook lasagna noodles according to package directions until al dente. Drain and lay flat on a clean kitchen towel.
- In a large bowl, combine ricotta, beaten egg, fresh basil, oregano, 1/2 cup parmesan, and black pepper. Mix well.
Assemble the Lasagna
- Grease a 9x13 inch baking dish. Spread 1 cup of sauce on the bottom.
- Layer 4 lasagna noodles over the sauce. Spread half the ricotta mixture over noodles.
- Add half the roasted vegetables and 1/3 of the mozzarella cheese. Top with 1 cup sauce.
- Repeat with 4 more noodles, remaining ricotta mixture, remaining vegetables, and another 1/3 of mozzarella. Add 1 cup sauce.
- Top with final 4 noodles, remaining sauce, remaining mozzarella, and 1/2 cup parmesan.
Bake
- Cover tightly with foil and bake for 45 minutes.
- Remove foil and bake for 15 more minutes until cheese is golden and bubbly.
- Let rest for 15 minutes before slicing and serving.
Notes
This lasagna can be assembled up to 24 hours ahead and refrigerated before baking. Add 10-15 minutes to the covered baking time if starting from cold. Leftover lasagna keeps in the refrigerator for 4 days and can be frozen for up to 3 months.
