Stuffed Butternut Squash with Italian sausage, spinach, apples, and toasted pumpkin seeds is a fall-inspired weeknight meal that highlights the best of autumn’s produce, featuring winter squash, red and green apples, and toasted pumpkin seeds! It works well as a side or a main dish, and it’s gluten-free, dairy-free, and low-carb.
Preheat oven to 400 F. Line a large baking sheet with parchment paper for easy clean-up.
Prepare the butternut squash. Slice each one in half lengthwise. Keep fingers away from the knife to avoid injury. Use a spoon to scoop out the seeds and fleshy strands tangled with the seeds.
Place butternut squash cut sides up on a baking sheet. Drizzle the cut sides of the butternut squash halves with olive oil and rub the oil into the squash. Season generously with salt and pepper.
Turn the squash halves over, and place it cut sides down on a baking sheet.
Roast in the preheated oven at 400 F for 30 or 40 minutes.
Make sausage and apple filling
Make the sausage filling while the squash is being roasted in the oven.
In a large skillet, heat olive oil, add diced onion, and cook it on medium-high heat for about 2 minutes until cooked.
Add the crumbled sausage and cook for 5 minutes or more on medium heat until it is completely cooked through.
Add fresh spinach and cook briefly on medium heat until the spinach wilts.
Add the diced apples and stir everything together, cooking for a few minutes until the apples are heated through.
Season with salt and pepper. Probably not necessary since the sausage is already usually salty.
Assembly
By this time, you have roasted the butternut squash for 30 or 40 minutes. Remove them from the oven and turn the cooked squash halves cut sides up.
Let it cool slightly. Using a spoon, scoop out the flesh, leaving about a 1-inch border along the sides. (For reference, I provide the step-by-step photos for this step above the recipe card). Add the scooped-out squash back into the largest cavities and press it down.
Reheat the sausage mixture in the same skillet you made it in to warm it up.
Divide the sausage filling among the 4 halves and stuff the squash until the mixture is leveled or a little bit higher.