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A Cozy Dish for Fall Nights: Invisible Butternut Squash, Spinach + Mushroom Lasagna

As the leaves turn vibrant shades of gold and crimson, and the air becomes a crisp whisper of autumn, I find myself yearning for cozy nights filled with comfort food. One dish that perfectly captures this essence is my Invisible Butternut Squash, Spinach, and Mushroom Lasagna. It’s creamy, cheesy, and so incredibly satisfying that each bite feels like a warm embrace. Plus, it’s a wonderful way to sneak in those seasonal veggies, making it a perfect candidate for a wholesome and easy weeknight dinner.

This recipe holds a special place in my heart, reminiscent of the simple gatherings with loved ones around the dinner table. Each layer of this luscious lasagna embodies the spirit of the season — a joyful fusion of flavors that celebrates both the warmth of home and the beauty of fresh ingredients. Trust me when I say, this is one you’ll definitely want to pin for later!

Why You’ll Love This Recipe

Comforting and Satisfying: This lasagna is packed with creamy goodness that will warm you from the inside out.
Hidden Veggies: The butternut squash makes this dish not only nourishing but also adds a delightful sweetness that you might not expect!
Quick and Easy: Perfect for busy weeknights, it comes together in a breeze — just a little prep and it’s ready for the oven!
Family-Friendly: The whole family will love digging into this cheesy dish, making it a hit for dinner gatherings.
Make Ahead: You can easily prepare this ahead of time and pop it in the oven just when you need it!

Ingredients You’ll Need for Invisible Butternut Squash, Spinach + Mushroom Lasagna

2 tbs olive oil
5 oz baby spinach, (rough chop)
20 oz baby bella mushrooms, (sliced)
1½ lbs butternut squash
5 oz Boursin cheese, (room temp)
2 eggs
1/3 cup milk
1/3 cup flour
1 tsp baking powder
1/2 tsp each salt, garlic powder, and onion powder
1/8 tsp ground nutmeg
3 tbs parsley, (minced)
1 cup shredded mozzarella cheese
2 tbs grated parmesan cheese

Let’s Make It Together

Preheat your oven to 400℉. Spray a 9×13 inch baking dish with olive oil.
Heat 1 tsp of olive oil in a large skillet and sauté the spinach for 1-2 minutes. Transfer and set aside.
In the same skillet, add the remaining olive oil and sauté the mushrooms for 4-5 minutes. Transfer and set aside.
Peel, halve, and deseed the butternut squash, then slice it into thin pieces.
In a large bowl, combine Boursin, eggs, and milk. Whisk until smooth.
Mix in the flour, baking powder, salt, garlic powder, onion powder, and nutmeg until well combined.
Fold in the parsley, sautéed spinach, mushrooms, and butternut squash into the mixture.
Transfer to the baking dish and smooth out the top. Sprinkle with mozzarella and parmesan cheese.
Bake for 40-45 minutes until golden brown and bubbly.

Fun Ways to Customize It

Add Some Heat: Sprinkle in some crushed red pepper flakes for a zesty twist that will make your taste buds dance!
Switch Up the Cheese: Feel free to experiment with different cheeses like ricotta or fontina for a creamy, rich flavor.
Veggie Variations: Swap in your favorite seasonal vegetables, like kale or zucchini, to add even more nutrition and flavor.
Herb Infusion: Add fresh basil or thyme for a fragrant twist that complements the earthy mushrooms beautifully.

Chef Emma’s Helpful Tips

Make-Ahead Option: Assemble the lasagna the day before and store it in the fridge. Just pop it in the oven when you’re ready to enjoy!
Slicing Trick: To slice butternut squash easily, make sure to use a sharp knife and a stable cutting board. If it’s too firm, microwave it for a minute or two to soften slightly before cutting.
Flavor Boost: If you have a little leftover white wine or vegetable broth, splash some on top before baking for extra depth of flavor.
Storage Suggestions: The leftovers can be stored in an airtight container in the fridge for up to five days, or frozen for up to three months!

What’s Inside – Nutrition Breakdown

Serving Size: 1 slice
Calories: 320
Carbohydrates: 30g
Sugar: 3g
Fat: 18g
Protein: 12g
Sodium: 420mg

Reader FAQs About Invisible Butternut Squash, Spinach + Mushroom Lasagna

Can I make this ahead?
Absolutely! You can prepare it the night before and bake it fresh the next day.

Can I use different ingredients?
Yes! Feel free to swap the vegetables or cheeses based on what you have on hand.

How do I store leftovers?
Store your leftovers in an airtight container in the fridge for up to five days.

How long does it last?
If you freeze it, this lasagna will last for up to three months!

A Cozy Closing Note

This Invisible Butternut Squash, Spinach, and Mushroom Lasagna is more than just a meal; it’s an invitation to gather around the table, savoring every moment with family and friends. Its creamy layers and comforting flavors capture the essence of autumn beautifully. Save this recipe to your cozy nights board so it’s ready when you need a comforting treat!

May your kitchen be filled with warmth and your plate with joy! Happy cooking!