Vegetarian White Lasagna with Spinach and Mushrooms
Love lasagna but craving something a little lighter—or maybe just something without the tomato sauce? Enter Spinach & Mushroom White Lasagna, a creamy, savory dish layered with ricotta, tender sautéed vegetables, gooey mozzarella, and a silky homemade white sauce. It’s rich and comforting without being heavy, and it’s the kind of meal that makes you pause, sigh, and go back for seconds.

Why I Love This Recipe
This white lasagna is the perfect cozy, meatless main dish. It’s hearty and flavorful thanks to the umami from sautéed mushrooms and the creaminess of ricotta and Parmesan. The homemade béchamel (white sauce) elevates it beyond your basic casserole, making it feel both rustic and elegant. It’s also great for making ahead, whether for family dinners, potlucks, or a weekend meal prep win.
🛒 Ingredients
- 9 lasagna noodles, cooked and drained
- 2 tbsp olive oil
- 1 small onion, diced
- 3 cloves garlic, minced
- 2 cups mushrooms, sliced
- 4 cups fresh spinach
- 2 cups ricotta cheese
- 1 cup grated Parmesan cheese
- 2 cups shredded mozzarella
- 2 cups milk
- 2 tbsp butter
- 2 tbsp flour
- Salt, pepper, and a pinch of nutmeg
🔄 Ingredient Swaps & Additions
- No mushrooms? Try zucchini, roasted red peppers, or artichoke hearts.
- Add protein: Stir in shredded rotisserie chicken or crumbled Italian sausage.
- Use no-boil noodles to save time—just add a bit more milk to keep it moist.
- Make it gluten-free: Use GF noodles and a 1:1 gluten-free flour blend for the roux.
👨🍳 How to Make It
1. Sauté the Veggies
- In a large skillet, heat olive oil over medium.
- Add onions, garlic, and mushrooms. Cook until tender, about 5–7 minutes.
- Stir in spinach and cook until wilted. Season with salt and pepper. Set aside.
2. Make the White Sauce
- In a saucepan, melt butter over medium heat. Stir in flour and cook for 1 minute, whisking constantly.
- Slowly whisk in milk, stirring until thickened—about 4–5 minutes.
- Add salt, pepper, and a pinch of nutmeg for classic flavor.
3. Assemble the Lasagna
- Preheat oven to 375°F (190°C).
- In a greased 9×13-inch baking dish, spread a small amount of sauce on the bottom.
- Layer with 3 noodles, ricotta cheese, sautéed veggies, a handful of mozzarella, and a ladle of sauce.
- Repeat layers until all ingredients are used, ending with sauce and a final sprinkle of mozzarella and Parmesan on top.
4. Bake
- Cover with foil and bake for 25 minutes.
- Uncover and bake an additional 10–15 minutes, until golden and bubbly.
- Let rest 10 minutes before slicing and serving.
💡 Tips for Success
- Letting the lasagna rest makes it easier to slice and serve clean layers.
- Make it ahead: assemble the night before and bake the next day.
- Double the recipe and freeze one for a future comfort meal.
🍽 Serving Suggestions & Pairings
Pair this creamy white lasagna with:
- A crisp Caesar or arugula salad
- Garlic bread or focaccia
- A starter like This Beer Cheese Dip for gatherings
- Want a cozy combo? Serve with These Easy Turkey Wings
- Add a fun kid-friendly side like Sheet Pan Quesadillas or pair with brunch dishes like This One Pan Breakfast Bake
🧊 Storage & Leftover Tips
- Refrigerate leftovers for up to 4 days in an airtight container.
- Reheat in the oven at 350°F or microwave individual portions.
- Freeze assembled but unbaked for up to 2 months—just thaw overnight and bake as directed.
🥘 More Recipes You’ll Love
If you’re all about comfort food with layers of flavor, check out:
- This Dorito Casserole – bold and cheesy with crunchy topping
- These Sheet Pan Quesadillas – perfect for feeding a hungry group
- These Easy Turkey Wings – tender, juicy, and totally comforting
- This Beer Cheese Dip – the ultimate creamy, cheesy appetizer
📝 Final Thoughts
Spinach & Mushroom White Lasagna is creamy, comforting, and layered with flavor in every bite. Whether you’re looking for a satisfying vegetarian dinner or just want to switch up your lasagna game, this recipe is a winning option. It’s hearty without being heavy, and it’s sure to become a repeat favorite at your table.
👉 Tried it? Tag @ChefManiac with your bubbling, golden creations and share your favorite tweaks! Follow us for more hearty, flavor-packed comfort meals you’ll want to make again and again.



