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Easy Creamy Spinach Mushroom Lasagna

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  • Author: Linda
  • Prep Time: 30 minutes
  • Cook Time: 45 minutes
  • Total Time: 1 hour 15 minutes
  • Yield: 6–8 servings
  • Category: Dinner, Main Dish
  • Method: Baked
  • Cuisine: Italian-Inspired
  • Diet: Vegetarian

Description

Easy Creamy Spinach Mushroom Lasagna is a rich, comforting vegetarian lasagna layered with sautéed mushrooms, tender spinach, creamy béchamel, and melty cheese. This meatless lasagna recipe is perfect for cozy dinners, make-ahead meals, or feeding a hungry crowd.


Ingredients

  • Lasagna noodles (regular or no-boil)
  • 2 tbsp olive oil
  • 2 tbsp butter
  • 3 cloves garlic, minced
  • 1 yellow onion, chopped
  • 16 oz fresh mushrooms (cremini or white), sliced
  • 6 cups fresh spinach (or 10 oz frozen, thawed and squeezed dry)
  • 3 tbsp all-purpose flour
  • 3 cups milk
  • ¼ tsp ground nutmeg
  • Salt and pepper, to taste
  • 1 ½ cups ricotta cheese
  • 1 cup grated Parmesan cheese
  • 2 cups shredded mozzarella cheese
  • Extra butter or oil for greasing baking dish

Instructions

  • Preheat oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish.
  • In a large skillet, heat olive oil and butter over medium heat. Sauté onion and garlic until soft, about 3–4 minutes.
  • Add mushrooms and cook until golden and moisture evaporates. Stir in spinach and cook until wilted. Set aside.
  • In the same pan, melt 2 tbsp butter. Whisk in flour and cook for 1 minute. Gradually add milk, whisking constantly. Simmer until thickened. Season with nutmeg, salt, and pepper.
  • Begin layering in the baking dish: start with béchamel, then noodles, ricotta, mushroom-spinach mixture, mozzarella, and repeat. Finish with béchamel, mozzarella, and Parmesan on top.
  • Cover with foil and bake for 30 minutes. Uncover and bake for an additional 10–15 minutes, until bubbly and golden.
  • Let rest for 10 minutes before slicing and serving.

Notes

  • Use no-boil noodles for easier prep.
  • Add roasted red peppers, zucchini, or pesto between layers for extra flavor.
  • For richness, stir a bit of cream into the béchamel or mix in fontina cheese.
  • To freeze: wrap tightly and freeze for up to 2 months.
  • Reheat in oven at 350°F or in microwave until heated through.