Adam Leonti Vegetarian Lasagna Recipe Made Easy

Updated On: October 4, 2025

Lasagna is a beloved comfort food, and when it’s made vegetarian, it brings a fresh, vibrant twist to a classic dish. Adam Leonti’s vegetarian lasagna recipe is a perfect balance of hearty vegetables, creamy cheese, and rich tomato sauce layered between tender pasta sheets.

This recipe is ideal for anyone looking to enjoy a satisfying meal without meat, whether you’re a committed vegetarian or just exploring more plant-based dishes. The combination of fresh spinach, mushrooms, zucchini, and a blend of cheeses creates a deliciously layered experience that’s both wholesome and comforting.

In this blog post, I’ll guide you through Adam Leonti’s vegetarian lasagna recipe step-by-step, sharing tips for perfecting the layers and making it your own. Whether you’re cooking for family, friends, or yourself, this lasagna will quickly become a favorite on your dinner table.

Why You’ll Love This Recipe

This lasagna stands out because it’s packed with fresh vegetables and flavors that complement each other beautifully. Unlike traditional meat lasagnas, this version is lighter yet still deeply satisfying thanks to the rich tomato sauce and creamy cheese layers.

Adam Leonti’s recipe uses simple, fresh ingredients that come together in a way that’s approachable for home cooks of all skill levels. Plus, it’s a great dish to prepare ahead of time and bake when you’re ready, making it perfect for busy weeknights or weekend gatherings.

The balanced flavors and textures, from tender zucchini ribbons to sautéed mushrooms and spinach, make this vegetarian lasagna a crowd-pleaser for meat-eaters and vegetarians alike.

Ingredients

  • 9 lasagna noodles (regular or no-boil)
  • 2 tablespoons olive oil
  • 1 medium onion, finely chopped
  • 3 cloves garlic, minced
  • 1 cup mushrooms, sliced (cremini or button mushrooms)
  • 1 medium zucchini, thinly sliced lengthwise
  • 4 cups fresh spinach
  • 28 oz canned crushed tomatoes
  • 2 tablespoons tomato paste
  • 1 teaspoon dried oregano
  • 1 teaspoon dried basil
  • Salt and freshly ground black pepper, to taste
  • 15 oz ricotta cheese
  • 1 large egg
  • 2 cups shredded mozzarella cheese
  • 1 cup grated Parmesan cheese
  • Fresh basil leaves for garnish (optional)

Equipment

  • Large pot for boiling noodles
  • Large skillet for sautéing vegetables
  • Mixing bowl for ricotta mixture
  • 9×13 inch baking dish
  • Wooden spoon or spatula
  • Aluminum foil for covering the lasagna while baking
  • Cheese grater (if shredding your own cheese)

Instructions

  1. Preheat your oven to 375°F (190°C). Lightly grease your 9×13 inch baking dish with olive oil or non-stick spray.
  2. Cook the lasagna noodles: Bring a large pot of salted water to a boil. Add the lasagna noodles and cook according to package instructions until al dente. Drain and set aside on a lightly oiled surface to prevent sticking.
  3. Prepare the vegetable sauce: Heat 2 tablespoons olive oil in a large skillet over medium heat. Add the chopped onion and sauté for about 3-4 minutes until translucent.
  4. Add garlic and mushrooms: Stir in the minced garlic and sliced mushrooms. Cook for another 5 minutes until mushrooms are soft and fragrant.
  5. Add zucchini and spinach: Add the zucchini slices and cook for 3 minutes, then toss in the spinach and cook until wilted, about 2 minutes.
  6. Make the tomato sauce base: Pour in the crushed tomatoes and tomato paste. Stir to combine, then add dried oregano, dried basil, salt, and pepper. Simmer gently for 10-15 minutes, stirring occasionally.
  7. Prepare the ricotta mixture: In a mixing bowl, combine ricotta cheese with the egg and 1/2 cup of the grated Parmesan cheese. Mix well until creamy and smooth.
  8. Assemble the lasagna: Spread a thin layer of the tomato vegetable sauce on the bottom of the baking dish. Arrange 3 lasagna noodles over the sauce.
  9. Layer ricotta and sauce: Spread one-third of the ricotta mixture over the noodles, followed by one-third of the vegetable tomato sauce. Sprinkle with 2/3 cup mozzarella cheese.
  10. Repeat layers: Add another layer of 3 noodles, ricotta mixture, sauce, and mozzarella. Finish with the last 3 noodles, remaining sauce, mozzarella, and remaining Parmesan cheese on top.
  11. Cover and bake: Cover the dish tightly with aluminum foil. Bake in the preheated oven for 25 minutes. Remove foil and bake for an additional 15 minutes until bubbly and golden on top.
  12. Rest before serving: Remove from oven and let the lasagna rest for 10-15 minutes. This helps the layers set and makes it easier to slice.

Tips & Variations

“For an extra depth of flavor, add a splash of red wine to the tomato sauce while it simmers.”

If you want to add more veggies, consider layering in roasted eggplant or bell peppers. For a vegan version, substitute ricotta with tofu ricotta and use vegan mozzarella alternatives.

You can also swap zucchini with yellow squash for a different texture.

To save time, prepare the sauce and vegetable sauté a day ahead. The flavors will deepen, and your lasagna will be ready to assemble and bake whenever you want.

Use fresh herbs like basil and oregano if you have them on hand, as they brighten the dish beautifully compared to their dried counterparts.

Nutrition Facts

Nutrient Amount per Serving
Calories 410 kcal
Protein 22 g
Carbohydrates 38 g
Fat 18 g
Fiber 6 g
Sodium 520 mg
Calcium 350 mg

Serving Suggestions

This vegetarian lasagna pairs wonderfully with a crisp green salad dressed with a light vinaigrette. Consider serving it alongside garlic bread or a crusty baguette to soak up any extra sauce.

For a more elaborate meal, add a side of roasted vegetables like asparagus or Brussels sprouts. A chilled glass of white wine or a sparkling water with lemon complements the bright tomato flavors perfectly.

Looking for other comforting recipes? Try our Breakfast Wellington Recipe for a savory start to your day or indulge in the rich flavor of Braised Pork Ribs With Radish Recipe for your next dinner party.

Conclusion

Adam Leonti’s vegetarian lasagna recipe is a delightful way to enjoy a classic Italian dish without meat. Its layers of fresh vegetables, savory tomato sauce, and creamy cheeses come together to create a dish that’s both comforting and nutritious.

Whether you’re cooking for vegetarians or simply want a delicious meatless meal, this lasagna is sure to impress.

With simple ingredients and easy-to-follow steps, it’s accessible for cooks of all levels and perfect for meal prepping. Don’t hesitate to experiment with your favorite veggies or cheeses to make it your own.

Enjoy this hearty lasagna with loved ones and savor every bite of this wholesome, flavorful meal.

📖 Recipe Card: Adam Leonti Vegetarian Lasagna

Description: A hearty and flavorful vegetarian lasagna packed with fresh vegetables and creamy ricotta. Perfect for a family dinner or meal prep.

Prep Time: PT25M
Cook Time: PT45M
Total Time: PT1H10M

Servings: 6 servings

Ingredients

  • 9 lasagna noodles
  • 2 tablespoons olive oil
  • 1 medium onion, diced
  • 3 cloves garlic, minced
  • 2 cups mushrooms, sliced
  • 2 cups spinach, chopped
  • 1 zucchini, diced
  • 1 jar (24 oz) marinara sauce
  • 1 ½ cups ricotta cheese
  • 2 cups shredded mozzarella cheese
  • ½ cup grated Parmesan cheese
  • Salt and pepper to taste

Instructions

  1. Preheat oven to 375°F (190°C).
  2. Cook lasagna noodles according to package instructions; drain and set aside.
  3. Heat olive oil in a pan, sauté onion and garlic until translucent.
  4. Add mushrooms, zucchini, and spinach; cook until softened. Season with salt and pepper.
  5. Spread a thin layer of marinara sauce in a baking dish.
  6. Layer 3 noodles, half the vegetable mixture, half the ricotta, and some marinara sauce.
  7. Repeat layers once more, then top with remaining noodles, sauce, mozzarella, and Parmesan.
  8. Cover with foil and bake for 35 minutes.
  9. Remove foil and bake an additional 10 minutes until cheese is bubbly and golden.
  10. Let rest for 10 minutes before serving.

Nutrition: Calories: 350 kcal | Protein: 18 g | Fat: 15 g | Carbs: 35 g

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Marta K

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