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Comforting Mushroom and Spinach Lasagna for Cozy Nights

Published: Aug 8, 2025 by Julie Chen · This post may contain affiliate links · Leave a Comment

As the aroma of sautéed mushrooms mingles with the earthy warmth of fresh spinach, I can’t help but feel a sense of nostalgia wash over me. This Mushroom and Spinach Lasagna is more than just a comforting dish; it's my go-to recipe for busy weeknights when fast food simply won't do. Layered with tender no-boil noodles and a creamy béchamel sauce, this vegetarian delight is not just easy to prepare but is also freezer-friendly, making it the perfect make-ahead meal. Whether it's a cozy family dinner or a gathering with friends, each slice promises to warm your heart and fill your home with love. Are you ready to dive into this deliciously comforting journey?

Why Choose Mushroom and Spinach Lasagna?

Comforting Flavor: This decadent dish combines earthy mushrooms and fresh spinach, bringing together a symphony of flavors that will warm your soul.

Easy Preparation: With only a few steps and no-boil noodles, this recipe is designed for even the busiest home cooks, making it a breeze to enjoy homemade goodness.

Versatile Option: Perfect for meal prep or gatherings, you can easily customize it by adding extra vegetables or different cheeses for a unique spin.

Freezer Friendly: Make a double batch to save time for later! Simply reheat your lasagna for a quick meal that delights your taste buds.

Crowd-Pleasing Appeal: Whether it’s a family dinner or a potluck, this Mushroom and Spinach Lasagna is sure to impress your guests.

Discover more about delicious vegetarian recipes with our post on Easy and Flavorful Cooking Ideas.

Mushroom and Spinach Lasagna Ingredients

For the Lasagna
• No-Boil Lasagna Noodles – These provide sturdy layers, making this dish effortless to assemble.
• Fresh Spinach – Adds nutrition and a vibrant color; thaw and drain if you opt for frozen.
• Mushrooms – The earthy flavor base; cremini or button mushrooms are recommended for depth.

For the Béchamel Sauce
• Butter – Forms the base fat that enriches the béchamel sauce.
• All-Purpose Flour – Acts as a thickening agent; substitute with gluten-free flour for a gluten-free version.
• Whole Milk – Creates the silky texture of béchamel; consider almond or oat milk for a dairy-free alternative.
• Nutmeg – Optional, but it adds a layer of warm flavor to the sauce.

For the Topping
• Mozzarella Cheese – Provides that creamy stretch we all love; ricotta or goat cheese can be excellent substitutes for variety.
• Parmesan Cheese – Adds a savory depth and enhances the overall flavor of the lasagna.

This Mushroom and Spinach Lasagna is a satisfying comfort food perfect for any occasion. Happy cooking!

Step‑by‑Step Instructions for Mushroom and Spinach Lasagna

Step 1: Prepare Vegetables
In a large skillet, heat 2 tablespoons of olive oil over medium heat. Add sliced mushrooms and sauté for 5-7 minutes until they are golden and softened. Stir in fresh spinach, cooking for another 2-3 minutes until wilted. Remove from heat and set aside, allowing the savory mixture to cool slightly before assembly.

Step 2: Make Béchamel Sauce
In a saucepan over medium heat, melt 4 tablespoons of butter. Whisk in ¼ cup of all-purpose flour, cooking for about 1-2 minutes until lightly golden. Gradually pour in 3 cups of whole milk while whisking continuously for 5-7 minutes, until the sauce thickens and is smooth. Season with salt, pepper, and a pinch of nutmeg for added warmth.

Step 3: Assemble Lasagna
Preheat your oven to 375°F (190°C). In a 9x13 inch baking dish, spread a thin layer of béchamel sauce on the bottom. Layer with no-boil lasagna noodles, followed by half of the sautéed mushroom and spinach mixture. Repeat the layers with more béchamel and sprinkle a generous amount of mozzarella cheese. Continue layering until all ingredients are used, finishing with noodles, béchamel, and topped with remaining mozzarella and parmesan.

Step 4: Bake Lasagna
Cover the assembled Mushroom and Spinach Lasagna with aluminum foil to prevent over-browning. Place it in the preheated oven and bake for 30 minutes. After this time, remove the foil and bake for an additional 15-20 minutes until the top is bubbly and golden brown, invitingly aromatic.

Step 5: Cool and Serve
Once baked, remove the lasagna from the oven and allow it to rest for 10-15 minutes. This cooling period will ensure the layers set beautifully, making it easier to slice. Serve warm, and enjoy the comforting flavors of your homemade Mushroom and Spinach Lasagna surrounded by family and friends.

What to Serve with Mushroom and Spinach Lasagna?

Imagine a cozy evening where each bite of delicious Mushroom and Spinach Lasagna is perfectly complemented by delightful sides and sips that elevate your meals to new heights.

  • Garlic Bread: The perfect companion, this warm, buttery delight is ideal for mopping up that luscious béchamel sauce.
  • Side Salad: Crisp greens tossed with a light vinaigrette introduce refreshing textures that balance the richness of the lasagna.
  • Roasted Vegetables: A medley of carrots, zucchini, and bell peppers provides a colorful and savory addition, enhancing the earthy flavors in the dish.
  • Creamy Polenta: Light and smooth, polenta adds a comforting grainy element, making every bite of lasagna a wholesome experience.
  • Red Wine: A glass of medium-bodied red, like Chianti, matches the savory depth of the dish and opens up the layers of flavor beautifully.
  • Dessert - Tiramisu: To finish on a sweet note, this classic Italian dessert offers a delightful coffee-infused counterpoint to the hearty lasagna.

Make Ahead Options

These Mushroom and Spinach Lasagna layers are perfect for busy home cooks looking to streamline meal prep! You can prepare the vegetable filling and béchamel sauce up to 24 hours in advance; just store them in airtight containers in the fridge to maintain freshness. Additionally, you can assemble the lasagna entirely and keep it covered in the refrigerator for up to 3 days before baking. When you’re ready to enjoy, simply preheat your oven and bake the lasagna as directed, adding an extra 10 minutes to the cooking time for optimal reheating. This way, you can savor a hearty, homemade dinner without the last-minute rush, preserving all the creamy goodness of your Mushroom and Spinach Lasagna!

Mushroom and Spinach Lasagna Variations

Feel free to let your creativity shine and customize this comforting dish to suit your taste!

  • Kale for Spinach: Swap fresh spinach with kale for a denser, nutrient-packed alternative. This adds a wonderful texture and earthy flavor to each layer.

  • Add Extra Vegetables: Incorporate roasted zucchini or bell peppers for additional flavor layers. You can mix in whatever veggies you have on hand for a colorful twist.

  • Cheese Mix: Create a rich layer by mixing in ricotta or goat cheese. It adds creaminess and unique flavor that will delight your palate.

  • Dairy-Free Delight: Substitute butter with dairy-free margarine and use plant-based milk and cheese alternatives. You can still enjoy creamy béchamel sauce without the dairy!

  • Spicy Kick: Add red pepper flakes or chopped jalapeños to heat things up. A little spice goes a long way in enhancing the overall flavor of your lasagna.

  • Herb Infusion: Mix in fresh herbs such as basil or oregano into the béchamel for a fragrant twist. It elevates the traditional flavor profile to something extraordinary.

  • Whole Wheat Noodles: For a healthier option, use whole wheat lasagna noodles. They provide a nutty taste and boost the fiber content.

  • Pine Nut Crunch: Top your lasagna with toasted pine nuts before baking for added texture and a delightful crunch! They add a lovely nuttiness that complements the earthy vegetables.

Don't forget, whether you’re exploring family favorite recipes or stepping outside of your comfort zone, diving into customization makes cooking a heartfelt experience that everyone can enjoy. If you'd like more recipes to inspire your culinary adventures, check out our post on Easy and Flavorful Cooking Ideas.

Expert Tips for Mushroom and Spinach Lasagna

  • Layering Technique: Start with béchamel sauce at the bottom to prevent noodles from sticking. This helps maintain a perfect texture in your Mushroom and Spinach Lasagna.
  • Vegetable Variations: Feel free to add roasted zucchini or bell peppers to boost flavor. Just remember to keep moisture levels in check!
  • Béchamel Consistency: If your sauce becomes too thick, gently whisk in warm milk until it reaches the desired silky texture, ensuring it perfectly coats your lasagna.
  • Make-Ahead Magic: Prepare the filling and béchamel sauce a day in advance. Assemble the lasagna up to three days ahead for a hassle-free meal on busy nights.
  • Freezer Storage: To enjoy your Mushroom and Spinach Lasagna later, wrap it tightly in foil before freezing—this will keep it fresh for up to two months!
  • Serving Size: For easy portioning, let the lasagna rest after baking. This helps each slice hold its shape, making it easier to serve and enjoy!

How to Store and Freeze Mushroom and Spinach Lasagna

Refrigerate: Store leftover lasagna in an airtight container for up to 3 days, ensuring it stays fresh and flavorful.

Freeze: Wrap the lasagna tightly in plastic wrap and then foil to prevent freezer burn, allowing you to store it for up to 2 months.

Thawing: When ready to enjoy, thaw in the refrigerator overnight before reheating for best results.

Reheating: Bake previously refrigerated or thawed Mushroom and Spinach Lasagna at 350°F (175°C) for about 25-30 minutes until heated through; add extra time if still cold.

Mushroom and Spinach Lasagna Recipe FAQs

How do I choose ripe mushrooms for my lasagna?
When selecting mushrooms, look for firm specimens without dark spots or wrinkles. Fresh mushrooms should smell earthy and pleasant, signaling their quality and flavor. If you're using cremini or button mushrooms, ensure they are free of moisture and are not slimy to the touch.

How should I store leftover Mushroom and Spinach Lasagna?
Store your leftover lasagna in an airtight container in the refrigerator for up to 3 days. Make sure it is completely cooled before sealing to retain its delicious texture and flavors. You can also cover it tightly with plastic wrap or aluminum foil for the best freshness.

Can I freeze Mushroom and Spinach Lasagna?
Absolutely! You can freeze the lasagna to enjoy later. Wrap it tightly in plastic wrap followed by aluminum foil to protect it from freezer burn. It will stay fresh for up to 2 months. When you're ready to reheat, simply thaw it in the refrigerator overnight before baking.

What should I do if my béchamel sauce is too thick?
If your béchamel turns out too thick, don't worry! Gradually whisk in warm milk, a little at a time, until you reach your desired consistency. The key is to add the milk slowly while whisking continuously to ensure a smooth, creamy sauce that will beautifully coat your layers.

Is this lasagna suitable for people with gluten allergies?
Yes! Simply substitute the no-boil lasagna noodles with gluten-free options, and replace the all-purpose flour in the béchamel sauce with a gluten-free flour blend. This way, everyone can enjoy a slice of your Mushroom and Spinach Lasagna without worry.

Can I use frozen spinach instead of fresh?
Definitely! If you're using frozen spinach, be sure to thaw and drain it well before incorporating it into your lasagna. This will prevent excess moisture that could make your lasagna soggy. Just remember to sauté it briefly with your mushrooms to enhance the flavor!

Mushroom and Spinach Lasagna

Comforting Mushroom and Spinach Lasagna for Cozy Nights

This Mushroom and Spinach Lasagna combines comforting flavors of earthy mushrooms and fresh spinach, perfect for busy weeknights.
Print Recipe Pin Recipe
Prep Time 15 minutes mins
Cook Time 45 minutes mins
Cooling Time 15 minutes mins
Total Time 1 hour hr 15 minutes mins
Servings: 6 slices
Course: Dinner
Cuisine: Italian
Calories: 350
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Lasagna
  • 9 sheets No-Boil Lasagna Noodles
  • 6 cups Fresh Spinach Thaw and drain if using frozen
  • 16 ounces Mushrooms Cremini or button recommended
For the Béchamel Sauce
  • 4 tablespoons Butter
  • ¼ cup All-Purpose Flour Substitute with gluten-free flour if needed
  • 3 cups Whole Milk Consider almond or oat milk for a dairy-free alternative
  • 1 teaspoon Nutmeg Optional
For the Topping
  • 2 cups Mozzarella Cheese Substitute with ricotta or goat cheese if desired
  • ½ cup Parmesan Cheese

Equipment

  • large skillet
  • Saucepan
  • 9x13 inch baking dish

Method
 

Preparation
  1. In a large skillet, heat 2 tablespoons of olive oil over medium heat. Add sliced mushrooms and sauté for 5-7 minutes until they are golden and softened. Stir in fresh spinach, cooking for another 2-3 minutes until wilted. Remove from heat and set aside, allowing the savory mixture to cool slightly before assembly.
  2. In a saucepan over medium heat, melt 4 tablespoons of butter. Whisk in ¼ cup of all-purpose flour, cooking for about 1-2 minutes until lightly golden. Gradually pour in 3 cups of whole milk while whisking continuously for 5-7 minutes, until the sauce thickens and is smooth. Season with salt, pepper, and a pinch of nutmeg.
  3. Preheat your oven to 375°F (190°C). In a 9x13 inch baking dish, spread a thin layer of béchamel sauce on the bottom. Layer with no-boil lasagna noodles, followed by half of the sautéed mushroom and spinach mixture. Repeat the layers with more béchamel and sprinkle a generous amount of mozzarella cheese. Finish with noodles, béchamel, and top with remaining mozzarella and parmesan.
  4. Cover with aluminum foil and bake for 30 minutes. After this time, remove the foil and bake for an additional 15-20 minutes until the top is bubbly and golden brown.
  5. Once baked, remove from the oven and allow to rest for 10-15 minutes before slicing. Serve warm.

Nutrition

Serving: 1sliceCalories: 350kcalCarbohydrates: 45gProtein: 15gFat: 15gSaturated Fat: 8gPolyunsaturated Fat: 0.5gMonounsaturated Fat: 3gCholesterol: 40mgSodium: 600mgPotassium: 400mgFiber: 3gSugar: 5gVitamin A: 30IUVitamin C: 15mgCalcium: 25mgIron: 15mg

Notes

This Mushroom and Spinach Lasagna is perfect for meal prep and can be frozen for up to two months.

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Welcome, Fellow Food Adventurer!

Hi, I'm Julie! I'm a passionate home cook who believes every meal should be an adventure. Join me as I share tested recipes, kitchen stories, and culinary discoveries that will inspire your next delicious creation.

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