
The easy creamy spinach mushroom lasagna recipe transforms classic comfort food into an elegant vegetarian masterpiece. This creamy spinach mushroom lasagna recipe layers tender pasta with earthy mushrooms, fresh spinach, and velvety béchamel sauce, creating a sophisticated dish that's surprisingly simple to prepare.
After countless attempts at vegetarian lasagna, this version has become my family's favorite. The combination of fresh vegetables and creamy sauce creates such a satisfying meal that no one misses the meat.
Key Ingredients & Selection Tips
- Fresh mushrooms: Choose cremini or portobello for rich, earthy flavor
- Baby spinach: Fresh leaves provide better texture than frozen
- All-purpose flour: Essential for silky béchamel sauce
- Whole milk: Creates the richest sauce texture
- Lasagna noodles: No-boil or traditional both work well
Detailed Instructions
- Vegetable preparation:
- Sauté mushrooms until golden, then add spinach and garlic until just wilted
- Perfect béchamel:
- Create roux with butter and flour, gradually whisk in warm milk
- Season sauce:
- Add nutmeg, salt, and pepper for depth of flavor
- Layer assembly:
- Start with thin béchamel layer, then alternate noodles, vegetables, and cheese
- Careful building:
- Ensure even distribution of ingredients between layers
- Proper baking:
- Cover with foil first 25 minutes, then uncover for golden top
- Essential rest:
- Let stand 10-15 minutes before cutting

My Italian grandmother taught me to add a pinch of nutmeg to the béchamel - it's subtle but makes all the difference in the final flavor.
Make-Ahead Tips
Assemble up to 24 hours in advance, refrigerate covered. Let come to room temperature before baking.
Cheese Selection
Use a combination of fresh mozzarella, whole milk ricotta, and aged Parmesan for complex flavor and optimal melting.
Vegetable Preparation
Cook mushrooms in batches to ensure proper browning. Overcrowding creates steam instead of caramelization.
Sauce Success
Keep béchamel smooth by adding warm milk gradually while whisking continuously.
Chef's Helpful Tips
- Use fresh herbs in every layer
- Let mushrooms brown properly before adding spinach
- Rest lasagna for clean slices

This vegetarian lasagna has converted even the most dedicated meat lovers in my family. The combination of perfectly cooked vegetables, creamy sauce, and melted cheese creates an unforgettable comfort food experience.
Frequently Asked Questions
- → Can I make this lasagna ahead of time?
- Yes, assemble it up to 24 hours ahead and keep refrigerated. Add an extra 10-15 minutes to baking time if cooking from cold.
- → Can I freeze this lasagna?
- Yes, wrap it well and freeze for up to 3 months. Thaw overnight in the fridge before baking.
- → What can I use instead of mushrooms?
- Try zucchini, eggplant, or roasted bell peppers as alternatives to mushrooms.
- → Do I need to cook the noodles first?
- It depends on your noodles. No-boil noodles go in dry, while traditional noodles need pre-cooking.
- → Why is my béchamel sauce lumpy?
- Whisk constantly while adding warm milk gradually to the flour-butter paste to prevent lumps from forming.