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Mushroom and Spinach Lasagna

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  • Author: Sue
  • Prep Time: 20 minutes
  • Cook Time: 40 minutes
  • Total Time: 1 hour
  • Yield: 6–8 servings
  • Category: Main Dish
  • Method: Baked
  • Cuisine: Italian-American
  • Diet: Vegetarian

Description

A creamy, savory lasagna layered with sautéed mushrooms, spinach, ricotta, and melted mozzarella—perfect for a comforting vegetarian meal.


Ingredients

  • 912 lasagna noodles
  • 2 tbsp olive oil
  • 1 small onion, finely chopped
  • 3 garlic cloves, minced
  • 10 oz mushrooms, sliced
  • 5 oz fresh spinach
  • 15 oz ricotta cheese
  • 1 large egg
  • 2 cups shredded mozzarella
  • 1/2 cup grated Parmesan
  • 2 cups marinara sauce
  • Salt and pepper, to taste
  • 1/4 tsp nutmeg (optional)

Instructions

  1. Preheat oven to 375°F (190°C). Cook lasagna noodles per package; drain and set aside.
  2. Heat olive oil in a large skillet over medium heat. Add onion and cook for 3–4 minutes until soft.
  3. Stir in garlic; cook 1 minute until fragrant.
  4. Add mushrooms; sauté until browned and moisture evaporates, about 5–7 minutes.
  5. Add spinach; cook until wilted. Season with salt, pepper, and nutmeg. Remove from heat.
  6. In a bowl, mix ricotta, egg, half the Parmesan, salt, and pepper.
  7. Spread 1/2 cup marinara on the bottom of a 9×13″ baking dish.
  8. Layer 3–4 noodles, one-third of the ricotta mixture, sautéed vegetables, 1/2 cup marinara, and 1/2 cup mozzarella. Repeat twice.
  9. Top with final layer of noodles, remaining marinara, mozzarella, and Parmesan.
  10. Cover with foil and bake 25 minutes. Remove foil and bake another 10–15 minutes until bubbly and golden.
  11. Let rest 10 minutes before slicing and serving.

Notes

  • You can swap fresh spinach with frozen (thawed and drained).
  • Add a pinch of red pepper flakes for heat.
  • For extra creaminess, stir a little béchamel or cream into the ricotta mixture.
  • Leftovers keep well refrigerated for 3–4 days; freeze up to 2 months.

Nutrition

  • Serving Size: 1 slice (approx. 1/8 of lasagna)
  • Calories: 350 kcal
  • Sugar: 6 g
  • Sodium: 450 mg
  • Fat: 18 g
  • Saturated Fat: 9 g
  • Unsaturated Fat: 7 g
  • Trans Fat: 0 g
  • Carbohydrates: 32 g
  • Fiber: 4 g
  • Protein: 16 g
  • Cholesterol: 60 mg