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Invisible Butternut Squash, Spinach + Mushroom Lasagna

As the cool autumn air sweeps in and the leaves transform into a beautiful mosaic of reds and golds, I find joy in creating warm, comforting meals that fill the home with delightful aromas. There’s something about the heartiness of lasagna that resonates deeply with me, especially when it’s packed with hidden treasures. That’s why today, I am thrilled to share my Invisible Butternut Squash, Spinach + Mushroom Lasagna — a creamy, cozy dish that feels like a warm hug on a chilly evening. This easy weeknight dinner is not only packed with flavor but is also a delightful way to sneak in some veggies for the family!

This is one you’ll definitely want to pin for later!

Why You’ll Love This Recipe

Healthy Twist on Tradition: This lasagna is lightened up with butternut squash, making it a veggie-packed option that delivers on flavor without the guilt.
Easy Weeknight Dinner: With simple instructions, this dish comes together quickly, giving you more time to enjoy your evening.
Family-Friendly: Even the pickiest eaters won’t suspect a thing! The creamy, cheesy layers are simply irresistible.
Perfect for Meal Prep: Make it ahead and bake it later, ensuring you always have a comforting meal at your fingertips.
Rich in Flavor: The combination of savory mushrooms, tender spinach, and creamy Boursin cheese creates a melody of flavors that dance on your palate.

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 temperature
2 eggs
1/3 cup milk
1/3 cup flour
1 tsp baking powder
1/2 tsp salt
1/2 tsp garlic powder
1/2 tsp onion powder
1/8 tsp ground nutmeg
3 tbs parsley, minced
1 cup shredded mozzarella cheese
2 tbs grated parmesan cheese

How to Make Invisible Butternut Squash, Spinach + Mushroom Lasagna

Preheat your oven to 400℉. Spray a 9×13 inch baking dish with olive oil to ensure easy cleanup.
In a large skillet, heat 1 teaspoon of olive oil over medium heat. Add the chopped spinach and sauté for about 1-2 minutes until wilted. Set aside.
In the same skillet, pour in the remaining olive oil and sauté the sliced mushrooms for 4-5 minutes until tender. Set them aside with the spinach.
Meanwhile, slice the butternut squash into thin pieces. Aim for uniformity to ensure even cooking!
In a mixing bowl, combine the Boursin cheese, eggs, and milk. Whisk until smooth, creating a creamy base for our lasagna.
Gradually mix in the flour, baking powder, salt, garlic powder, onion powder, and nutmeg until well combined.
Fold in the minced parsley, sautéed spinach, sautéed mushrooms, and butternut squash until everything is thoroughly coated in the cheesy mixture.
Pour the vegetable and cheese mixture into the prepared baking dish, spreading it out evenly.
Sprinkle the shredded mozzarella cheese and grated parmesan on top, creating a bubbly, golden crown for your lasagna.
Bake in the preheated oven for 40-45 minutes, or until bubbly and golden brown. Let it cool slightly before serving to allow the layers to set.

Delicious Variations to Try

Add Protein: Toss in some cooked shredded chicken or turkey bacon for an added protein boost. The savory notes will elevate the dish!
Herbed Delight: Enhance the flavor with a blend of Italian herbs like oregano or thyme for that zesty twist.
Veggie Medley: Replace or combine the spinach and mushrooms with other seasonal vegetables, such as zucchini, kale, or red bell peppers. Each addition brings its own unique touch!
Cheese Lover’s Dream: Switch out the Boursin for ricotta or cottage cheese if you prefer a creamier texture, or add in some feta for a tangy kick.

Chef Emma’s Helpful Tips

Make-Ahead Advice: This lasagna can be assembled a day in advance. Just cover it tightly and store it in the refrigerator until you’re ready to bake!
Slicing Technique: Use a mandoline or a sharp knife for even butternut squash slices, which will cook more uniformly and add creaminess to each bite.
Storage Suggestions: Store any leftovers in an airtight container in the fridge for up to 4 days. Reheat in the oven for the best texture.
Freezing: This dish freezes wonderfully! Just make sure to wrap well in plastic wrap and foil. When ready, just pop it in the oven from frozen, increasing the baking time.

What’s Inside – Nutrition Breakdown

Serving Size: 1 slice (approx. 1/8 of the dish)
Calories: ~290
Carbohydrates: 28g
Sugar: 3g
Fat: 15g
Protein: 12g
Sodium: 450mg

Frequently Asked Questions

Can I make this ahead?
Yes! Assemble it, cover well, and refrigerate or freeze it. Just remember to adjust the baking time if cooking from frozen.
Can I use different ingredients?
Absolutely! Feel free to substitute veggies or cheeses based on your preferences and what you have on hand.
How do I store leftovers?
Keep any leftovers in an airtight container in the fridge for up to 4 days. Reheat in the oven or microwave.
How long does it last?
This lasagna will stay fresh in the fridge for about 4 days, and it can be frozen for up to 3 months.

A Cozy Closing Note

This Invisible Butternut Squash, Spinach + Mushroom Lasagna is more than just a meal; it’s an experience filled with warmth, familial love, and delightful flavors that will linger in your heart long after the last bite. Perfect for chilly evenings or cozy gatherings, this dish embraces the spirit of comfort food like no other. Save this to your Pinterest board so it’s ready when you need a cozy treat!