Savory pork sausage with herb-scented mushrooms and bright bites of diced apple, stuffed into roasted acorn squash halves and finished with melty gruyère—only 265 calories per serving. This stuffed acorn squash captures the best flavors of fall in a healthy, satisfying main dish.
I think I blinked and missed fall this year. One minute I was driving with the Jeep top down and the next I was stepping into snow and thinking about holiday lists. Even if the season passed me by, I’m not skipping the recipes that make fall feel like fall. That’s how this stuffed acorn squash came to be: I bought a squash and packed it full of classic autumn flavors—sausage, mushrooms, apples, rosemary—and topped it with gruyère. The result is hearty, flavorful, and surprisingly light. If you want a simple, crowd-pleasing fall dinner, this one delivers.
SAUSAGE, MUSHROOM, AND APPLE STUFFED ACORN SQUASH
265 calories per serving (¼ of a whole squash)
Before we get to the recipe, a few quick tips on selecting and storing acorn squash so your dish turns out at its best.
What to look for when choosing an acorn squash
- Pick a squash with a dull, smooth, dark green skin. Avoid soft, mushy spots or shiny skin; dull shells usually indicate sweeter, better-flavored flesh.
- A small patch of orange or yellow where it rested on the ground is fine; a squash that is mostly orange can be overripe and dry inside.
- Choose a squash that feels heavy for its size—typically between 1 and 3 pounds. Lighter squash can be drier and less flavorful.
- If buying pre-cut squash, the flesh should be a bright orange and firm to the touch.
How to store acorn squash
- Store whole squash in a cool, dry place in a single layer for up to three months; an ideal temperature is around 50–55°F.
- If you refrigerate whole squash, keep it in a loosely sealed bag and use it within 1–2 weeks for best flavor.
- Cut squash should be wrapped tightly and used within 3–4 days.
Recipe overview
This recipe roasts acorn squash halves until tender, sautés a savory filling of ground sausage, mushrooms, onions, garlic, rosemary, and diced apple, then stuffs the squash and melts gruyère on top. It’s easy to prepare in about 50 minutes total and makes four generous servings (a quarter of the filled squash counts as one serving at about 265 calories).
Ingredients
- 1 acorn squash
- 2 tablespoons olive oil, divided
- 4 oz mushrooms, diced (any variety)
- ¼ white onion, diced
- ½ red apple, diced
- 3 cloves garlic, minced
- ½ cup gruyère cheese, shredded (reserve ¼ cup per squash half)
- 1 tablespoon fresh rosemary, chopped
- ½ lb ground sausage (pork recommended; turkey or chicken work too)
- ¼ tablespoon dried sage
- ¼ tablespoon dried thyme
- Salt and pepper, to taste
- Fresh parsley, chopped, for garnish
Instructions
- Preheat the oven to 450°F. Slice the acorn squash in half lengthwise and scoop out the seeds. Line a baking sheet with parchment paper and place the squash halves cut-side down on the sheet.
- Brush the inside of each squash half with about 1 tablespoon of olive oil total (a light coating) and season with salt and pepper. Roast cut-side down for 20 minutes.
- While the squash roasts, prepare the filling: dice the mushrooms, onion, apple, and mince the garlic. Shred the gruyère and chop the rosemary and parsley, setting the cheese and parsley aside for finishing.
- Heat a large skillet over medium-high and add the ground sausage. Cook, breaking it up with a spatula, until no longer pink, about 8–10 minutes. Drain excess fat and transfer the sausage to a plate.
- In the same skillet, add 1 tablespoon olive oil and the diced onion. Sauté until soft, about 3–4 minutes. Add the garlic and cook another minute.
- Add the diced mushrooms, chopped rosemary, dried sage, and dried thyme. Cook until the mushrooms release their liquid and soften, about 2–3 minutes.
- Stir the diced apple and cooked sausage into the skillet. Season with freshly ground pepper (and salt if needed). Remove from heat and taste to adjust seasoning.
- Remove the squash from the oven and carefully flip each half cut-side up (steam will escape—use caution). Scoop the filling into the squash halves, dividing it evenly.
- Top each stuffed half with about ¼ cup shredded gruyère. Return to the oven and bake for another 8–12 minutes, until the cheese has melted and is lightly golden.
- Garnish with chopped fresh parsley and serve warm. Each serving is filling—half a stuffed squash counts as two servings total for one person if desired.
Notes and storage
Leftovers reheat well. Warm on a baking sheet covered with foil at 350°F for 10–15 minutes, until heated through. You can swap the pork sausage for turkey or chicken sausage to reduce fat, and use your favorite mushroom variety for different flavor profiles. This dish pairs nicely with a simple green salad to round out the meal.
Recipe details
- Author: Caitlin
- Prep time: 15 minutes
- Cook time: 35 minutes
- Total time: 50 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Baked
- Cuisine: American
- Diet: Low Calorie
Looking for more stuffed vegetable ideas? Try stuffed mushrooms with blue cheese, chicken philly stuffed peppers, or southwestern stuffed mini peppers for different fillings and flavor profiles.
What did you think of this recipe? Did it make the cut or would you tweak it? Share your experience in the comments—I love hearing how readers adapt recipes!
