Easy Mushroom Spinach Lasagna for a Cozy Dinner

Easy Mushroom Spinach Lasagna is the ultimate comfort food. After making this many times, I’ve discovered the trick to keeping it from being too watery. Jump to Recipe or keep reading for my best tips. If you love recipes like this, you’ll also enjoy Easy Slow Cooker Little Smokies in BBQ Sauce and Creamy Moroccan Sweet Potato Soup with Chickpeas.

Why This Easy Mushroom Spinach Lasagna for a Cozy Dinner Is Pure Comfort
- It's creamy and comforting
- Packed with mushroom and spinach flavor
- Easier than you think to make
What You'll Need for Easy Mushroom Spinach Lasagna for a Cozy Dinner
Choosing the right ingredients makes a big difference, but this recipe is forgiving enough to work with what you have.
- Lasagna noodles
- Mushrooms
- Spinach
- Ricotta cheese
- Mozzarella cheese
- Parmesan cheese
- Marinara sauce
- Garlic
- Onion powder
- Salt
- Pepper
- Italian seasoning
- Optional: Fresh basil
- Optional: Red pepper flakes

📝 Ingredient Notes
- Lasagna noodles: No-boil noodles work great here.
🛒 Tools & Equipment I Recommend
- Non-stick skillet — Prevents mushrooms from sticking and burning → See on Amazon
- Food processor — Saves time when chopping spinach → See on Amazon

How to Make Easy Mushroom Spinach Lasagna for a Cozy Dinner
- Step 1: Cook mushrooms and garlic in a non-stick skillet until browned. Add spinach and cook until wilted.
- Step 2: Mix ricotta, Parmesan, salt, and pepper. Spread a thin layer of marinara in the bottom of a baking dish. Layer with noodles, ricotta mixture, mushroom spinach mixture, and mozzarella. Repeat layers.
- Step 3: Bake at 375°F (190°C) for 25-30 minutes, or until bubbly and golden.
Cook's Tips for Perfect Easy Mushroom Spinach Lasagna for a Cozy Dinner
- Common mistake and fix: Don't overcook the lasagna. It will continue to cook in the oven. If it's still undercooked, cover with foil and bake longer.
- Pro tip: Use no-boil noodles to save time and prevent the lasagna from being too watery.
- Pro tip: Let the lasagna rest for 10 minutes before serving to allow it to set and make it easier to serve.
Storing & Reheating Easy Mushroom Spinach Lasagna for a Cozy Dinner
Short-Term Storage
Store in an airtight container in the fridge. Store leftovers in an airtight container for up to 5 days. Make-ahead tip: You can assemble the lasagna a day ahead and refrigerate it before baking.
Freezing Easy Mushroom Spinach Lasagna for a Cozy Dinner
Freeze before baking. Thaw overnight in the fridge before baking.
How to Reheat Without Drying It Out
Oven: Reheat in the oven at 350°F (175°C) for 15-20 minutes. Microwave: Reheat in the microwave for 2-3 minutes.
Recipe Notes
- Chef tip: Sautéing the mushrooms until they release their moisture prevents the lasagna from being too watery.
- Best substitution: You can substitute the spinach with kale or Swiss chard.
- Make-ahead: This lasagna freezes beautifully. Assemble it in a disposable aluminum pan for easy gifting.
- Scaling: This recipe can be easily doubled or tripled for larger crowds.
- Troubleshooting: If your lasagna is still watery after baking, place it under the broiler for a few minutes to evaporate excess moisture.
Want to level up this recipe?
Lasagna pan — A good quality pan ensures even baking and easy cleanup → Check price on Amazon
Easy Mushroom Spinach Lasagna for a Cozy Dinner

Ingredients
Main Ingredients
- Lasagna noodles
- Mushrooms
- Spinach
- Ricotta cheese
- Mozzarella cheese
- Parmesan cheese
- Marinara sauce
Seasonings
- Garlic
- Onion powder
- Salt
- Pepper
- Italian seasoning
Optional Toppings
- Fresh basil
- Red pepper flakes
Instructions
- Step 1: Cook mushrooms and garlic in a non-stick skillet until browned. Add spinach and cook until wilted.
- Step 2: Mix ricotta, Parmesan, salt, and pepper. Spread a thin layer of marinara in the bottom of a baking dish. Layer with noodles, ricotta mixture, mushroom spinach mixture, and mozzarella. Repeat layers.
- Step 3: Bake at 375°F (190°C) for 25-30 minutes, or until bubbly and golden.
Notes
- Chef tip: Sautéing the mushrooms until they release their moisture prevents the lasagna from being too watery.
- Best substitution: You can substitute the spinach with kale or Swiss chard.
- Make-ahead: This lasagna freezes beautifully. Assemble it in a disposable aluminum pan for easy gifting.
- Scaling: This recipe can be easily doubled or tripled for larger crowds.
- Troubleshooting: If your lasagna is still watery after baking, place it under the broiler for a few minutes to evaporate excess moisture.
Storage
- Fridge: Store leftovers in an airtight container for up to 5 days.
- Freezer: Freeze before baking. Thaw overnight in the fridge before baking.
- Oven reheat: Reheat in the oven at 350°F (175°C) for 15-20 minutes.
- Microwave reheat: Reheat in the microwave for 2-3 minutes.
- Make ahead: You can assemble the lasagna a day ahead and refrigerate it before baking.
Nutrition Per Serving
- Calories: 450
- Protein: 22g
- Fat: 18g
- Carbs: 45g
- Fiber: 3g
- Sugar: 6g
- Sodium: 1200mg
- Cholesterol: 70mg
- Sat. Fat: 10g
Nutritional values are estimates only. Actual values may vary by brand and portion size.
Easy Mushroom Spinach Lasagna for a Cozy Dinner FAQs
Yes, you can assemble the lasagna a day ahead and refrigerate it before baking. Or, you can freeze it before or after baking.
The lasagna may be watery if the noodles were overcooked or if the lasagna was not drained properly. Make sure to use no-boil noodles and drain the mushrooms well before layering.
No, this recipe is not suitable for the air fryer. It requires baking in the oven to achieve the correct texture and temperature.
You can substitute the ricotta cheese with cottage cheese, cream cheese, or even mashed potatoes for a lower-fat version.
Yes, you can substitute the mushrooms with spinach or other vegetables like zucchini or bell peppers.
A Warm Final Note
I can’t wait for you to try Easy Mushroom Spinach Lasagna for a Cozy Dinner and see how effortlessly it comes together. When you make it, pop back here and leave a rating or share how it turned out — I love hearing from you!






