Mushroom and Spinach Lasagna

There’s something undeniably comforting about the rich, cheesy layers of Mushroom and Spinach Lasagna. The combination of tender pasta, earthy mushrooms, and creamy béchamel sauce feels like a warm hug on a plate. Whether you’re cooking for a cozy family dinner or prepping meals for the week, this dish brings both nourishment and indulgence in every bite. If you love comforting meals like this, you might also enjoy trying Italian Drunken Noodles, a flavorful pasta dish with a bold, savory sauce.

A freshly baked mushroom and spinach lasagna with golden, bubbly cheese, served with basil and parmesan on a rustic wooden table.
Enjoy a delicious slice of creamy Mushroom and Spinach Lasagna, layered with rich béchamel sauce, mushrooms, and fresh spinach.

I still remember the first time I made Mushroom and Spinach Lasagna on a chilly Sunday evening. The aroma of garlic and mushrooms sizzling in olive oil filled my kitchen, instantly making me feel at home. As I layered the creamy spinach mixture between sheets of pasta, I realized how therapeutic cooking could be. By the time the lasagna emerged from the oven, golden and bubbling, I knew I had created something truly special. If you’re looking for another comforting meal, check out this recipe for Broccoli Cheese Soup, a creamy and cheesy delight perfect for chilly evenings. Now, it’s become a tradition one I look forward to every time I need a bit of comfort on my plate.

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A freshly baked mushroom and spinach lasagna with golden, bubbly cheese, served with basil and parmesan on a rustic wooden table.

Mushroom and Spinach Lasagna Recipe


Description

Creamy, cheesy, and full of flavor! This Mushroom and Spinach Lasagna layers tender pasta with a luscious béchamel-style sauce, earthy mushrooms, and fresh spinach. It’s the kind of comfort food that wraps you in warmth perfect for family dinners or make-ahead meals. Vegetarian, indulgent, and oh-so-satisfying!


Ingredients

Scale

For the Lasagna:

  • ½ lb. lasagna noodles (dried or ready-to-bake)
  • 3 tbsp extra virgin olive oil (or butter/ghee)
  • ½ large yellow onion, diced
  • 4 cloves garlic, minced
  • 1 lb. baby portobello mushrooms, sliced
  • Kosher salt and black pepper (to taste)
  • ¼ cup all-purpose flour
  • 1.75 cups vegetable stock (or chicken/turkey stock)
  • ½ cup heavy cream
  • 4 cups fresh spinach
  • 1½ cups shredded parmesan cheese, divided
  • 8 oz fresh mozzarella cheese, thinly sliced or shredded
  • ¼ cup chopped parsley (optional, for garnish)

Instructions

  1. Prepare the Sauce:
    Heat olive oil in a large saucepan over medium-high heat.
    Sauté onions and garlic for 1–2 minutes until soft.
    Add mushrooms and cook for 4–5 minutes until they release moisture and reduce in size.
    Season with salt and pepper.
    Stir in flour and cook for 30 seconds to remove the raw taste.
    Gradually whisk in vegetable stock to avoid lumps. Simmer for 8–10 minutes until thickened.
    Stir in heavy cream and continue to simmer for another 8–10 minutes.
    Turn off heat and mix in fresh spinach and ⅔ of the parmesan. Stir until spinach wilts.
  2. Assemble the Lasagna:
    Preheat oven to 375°F (190°C).
    Spread a thin layer of sauce at the bottom of an 8×10″ or 9×13″ baking dish.
    Add a layer of lasagna noodles, followed by sauce and mozzarella slices.
    Repeat layers until ingredients are used up.
    Finish with remaining parmesan and mozzarella on top.
  3. Bake:
    Bake uncovered for 30–40 minutes or until bubbly and golden brown on top.
    Let cool for 10 minutes to set before slicing.
    Garnish with chopped parsley if desired.

Notes

  • Don’t skip resting time it helps the lasagna set for clean slices.
  • Drain spinach well if using frozen to avoid excess moisture.
  • Use high-quality cheeses for the richest flavor.
  • Add a pinch of nutmeg to the sauce for extra warmth.
  • This dish freezes well, so consider doubling the recipe for meal prep.
  • Prep Time: 20 minutes
  • Cook Time: 40 minutes
  • Category: Lunch
  • Method: Baking, Sautéing
  • Cuisine: Italian-Inspired

Nutrition

  • Serving Size: 6-8
  • Calories: ~390 kcal
  • Sugar: ~4g
  • Sodium: ~440mg
  • Fat: ~22g
  • Saturated Fat: ~10g
  • Unsaturated Fat: ~11g
  • Trans Fat: ~0g
  • Carbohydrates: ~34g
  • Fiber: ~3g
  • Protein: ~18g
  • Cholesterol: ~45mg

Keywords: Mushroom Lasagna, Spinach Lasagna, Vegetarian Lasagna, Creamy Pasta Bake, Meatless Dinner, Comfort Food Lasagna, Oven-Baked Lasagna, Lasagna with Bechamel, Make-Ahead Meals, Cheesy Lasagna

Why You’ll Love This Mushroom and Spinach Lasagna

  • Easy to Make: Simple steps and basic ingredients make it beginner-friendly.
  • Rich and Creamy: The combination of béchamel sauce, parmesan, and mozzarella creates a luscious texture.
  • Vegetarian Delight: A perfect meat-free alternative for pasta lovers.
  • Customizable: Add extra vegetables or swap out cheeses to fit your preferences.
  • Great for Meal Prep: It freezes well, making it ideal for make-ahead meals.

Step-by-Step Guide to Making Mushroom and Spinach Lasagna

Step 1: Gather the Ingredients

Here’s what you’ll need:

  • ½ lb. lasagna noodles (dried or ready-to-bake)
  • 3 Tbsp. extra virgin olive oil (or butter/ghee)
  • ½ large yellow onion, diced
  • 4 cloves garlic, minced
  • 1 lb. baby portobello mushrooms, sliced
  • Kosher salt and black pepper to taste
  • ¼ cup flour
  • 1.75 cups vegetable stock (or chicken/turkey stock)
  • ½ cup heavy cream
  • 4 cups fresh spinach
  • 1.5 cups shredded parmesan cheese, divided
  • 8 oz. fresh mozzarella cheese, thinly sliced or shredded
  • ¼ cup chopped parsley (optional, for garnish)

Step 2: Equipment Needed

To prepare the perfect Mushroom and Spinach Lasagna, ensure you have the following:

  • Large Saucepan: For making the creamy mushroom and spinach sauce.
  • Baking Dish (8×10” or 9×13”): To layer and bake the lasagna.
  • Mixing Bowls: For preparing ingredients and mixing cheeses.
  • Whisk: Helps create a smooth sauce.
  • Chef’s Knife & Cutting Board: For chopping onions, mushrooms, and spinach.
  • Cooking Spoon or Spatula: For stirring and assembling.

Step 3: Preparing the Sauce

  1. Heat a large saucepan over medium-high heat and drizzle in olive oil.
  2. Sauté onions and garlic for 1-2 minutes until softened.
  3. Add sliced mushrooms and cook for 4-5 minutes until reduced in size.
  4. Season with salt and pepper to enhance flavors.
  5. Stir in flour and cook for 30 seconds.
  6. Slowly pour in vegetable stock, stirring continuously to avoid lumps.
  7. Simmer for 8-10 minutes until thickened.
  8. Add heavy cream, stirring occasionally for another 8-10 minutes.
  9. Turn off heat, mix in spinach and ⅔ of the parmesan cheese, and stir until spinach wilts.

Step 4: Assembling the Lasagna

  1. Preheat oven to 375°F.
  2. Spread a thin layer of sauce at the bottom of the baking dish.
  3. Lay down a layer of cooked lasagna noodles.
  4. Add a generous portion of sauce, followed by slices of mozzarella cheese.
  5. Repeat the layers until all ingredients are used.
  6. Top with remaining parmesan and mozzarella.
  7. Bake for 30-40 minutes until cheese melts and edges brown.
  8. Let it cool for 10 minutes before serving. Garnish with fresh parsley.

Common Mistakes to Avoid When Preparing Mushroom and Spinach Lasagna

  • Not Draining Spinach Properly: Excess water can make your lasagna watery.
  • Using Too Little Sauce: Dry lasagna is disappointing; be generous with the sauce.
  • Skipping the Seasoning: Ensure you add enough salt and pepper to enhance flavors.
  • Overcooking the Noodles: Slightly undercook them, as they will absorb sauce while baking.
  • Skipping Rest Time: Letting the lasagna sit before serving helps it set for cleaner slices.

Tips for Making the Best Mushroom and Spinach Lasagna

  • Use High-Quality Cheese: Fresh mozzarella and real parmesan make all the difference.
  • Experiment with Herbs: Add basil, oregano, or thyme for extra depth.
  • Make it Healthier: Swap heavy cream for a cauliflower-based sauce.
  • Try Different Mushrooms: Mix portobello, shiitake, or button mushrooms for more umami flavor.
  • Double the Recipe: Freeze extra portions for an easy future meal. If you’re a fan of baked dishes, you might also like Cheese Ravioli with Sage Butter, a rich and savory pasta dish that’s equally satisfying.

FAQs About Mushroom and Spinach Lasagna

Do you cook spinach before adding it to lasagna?

No, fresh spinach wilts in the sauce. If using frozen spinach, thaw and drain excess water.

What is the secret ingredient in lasagna?

A pinch of nutmeg in the sauce adds depth and warmth to the flavors.

Is it better to use fresh or frozen spinach in lasagna?

Both work well, but fresh spinach gives a brighter taste, while frozen spinach requires draining.

Why is my spinach lasagna watery?

Too much moisture from spinach or under-thickened sauce can lead to a watery lasagna. Drain spinach well and ensure the sauce thickens properly.

Conclusion

Mushroom and Spinach Lasagna is a must-try for any pasta lover. With its creamy, cheesy layers and delicious mushroom-spinach filling, it’s the ultimate comfort food. Whether you’re making it for a family dinner or meal prepping for the week, this lasagna is a guaranteed hit. Try it out, and don’t forget to share your experience in the comments!

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