When roasted acorn squash comes out of the oven with golden edges and a tender center, it becomes the perfect bowl for a warm seasonal filling. This Stuffed Acorn Squash combines naturally sweet squash with a savory wild rice mixture filled with mushrooms, herbs, cranberries, and crunchy pecans.
It’s a comforting dish that works beautifully for a fall dinner, holiday table, or a simple meatless meal. The roasted squash becomes soft and caramelized while the filling stays hearty and flavorful.
Why You’ll Love This Recipe
- Roasted squash halves create beautiful individual servings.
- The wild rice filling adds a hearty texture with mushrooms, herbs, cranberries, and pecans.
- The recipe makes 4 servings, making it practical for family dinners or entertaining.
- The squash and filling can be prepared with simple kitchen equipment.
- The combination of sweet squash and savory stuffing creates a balanced autumn flavor.
Ingredients

For the Squash
- 2 medium acorn squash (about 1½–2 lb / 680–900 g each)
- 2 Tbsp olive oil
- ½ tsp kosher salt
- ¼ tsp black pepper
For the Filling
- 1 cup cooked wild rice (185 g)
- 1 Tbsp olive oil
- 1 medium yellow onion, finely diced (about 150 g)
- 2 cloves garlic, minced
- 8 oz mushrooms, finely chopped (225 g)
- 1 medium celery stalk, finely diced
- ½ tsp dried thyme
- ½ tsp dried sage
- ¼ tsp black pepper
- ½ tsp salt
- ½ cup dried cranberries (60 g)
- ½ cup chopped pecans (55 g)
- ¼ cup vegetable broth (60 ml)
- 2 Tbsp fresh parsley, chopped
Choose medium acorn squash with firm skin and no soft spots. Similar-sized squash halves will roast more evenly.
How to Make This Recipe
Step 1: Prepare the Acorn Squash

Cut each acorn squash vertically in half and scoop out the seeds and pulp. Brush the cut sides with olive oil, then season with salt and black pepper. Place the squash cut-side down on a parchment-lined baking sheet.
Pro Tip: Choose squash halves that are similar in size so they finish cooking at the same time.
Step 2: Roast the Squash Until Tender

Roast the squash at 400°F (205°C) for 35–45 minutes. The squash is ready when a fork slides easily into the thickest part of the flesh and the edges begin to show light caramelization.
Avoid relying only on cooking time because larger squash may need extra minutes to become tender.
Step 3: Prepare the Wild Rice Filling

While the squash roasts, heat olive oil in a skillet. Cook the onion, celery, mushrooms, and garlic until softened. Add thyme, sage, salt, pepper, cranberries, pecans, cooked wild rice, and vegetable broth. Stir until the filling is warmed through and evenly combined.
Pro Tip: Keep the filling moist but not watery. Too much liquid can make the stuffed squash soggy.
Step 4: Fill and Finish the Squash

Turn the roasted squash halves cut-side up and spoon the wild rice filling into each cavity. Return the stuffed squash to the oven for 10–15 minutes until the filling is hot and the flavors come together.
The finished filling should feel warm and moist, while the squash should remain tender enough to scoop easily with a fork.

Expert Tips for Better Results
- Use a sharp knife when cutting acorn squash because the skin can be firm.
- Roast the squash until fork-tender instead of removing it early to avoid a firm, undercooked texture.
- Chop mushrooms and vegetables evenly so the filling cooks consistently.
- Do not overfill the squash halves; a balanced amount helps the filling heat evenly.
- Let leftovers cool before storing to help maintain quality.
Serving Suggestions
- Serve alongside a simple green salad for a complete autumn meal.
- Pair with roasted vegetables for a cozy seasonal dinner.
- Add fresh parsley on top before serving for a bright finishing touch.
- Serve as an attractive side dish at holiday gatherings.
- Pair with a warm herbal tea or seasonal drink.
Storage and Reheating
Store leftover stuffed acorn squash in an airtight container in the refrigerator for up to 4 days.
For freezing, cool the cooked squash completely before wrapping and freezing for up to 2 months. Thaw overnight in the refrigerator before reheating.
Reheat in a 350°F (175°C) oven for 15–20 minutes until heated through. Microwave reheating is possible, but the texture may become softer.
Ingredients
Method
- Cut and season acorn squash halves. Roast cut-side down at 400°F (205°C) for 35–45 minutes until fork-tender.
- Cook onion, celery, mushrooms, and garlic in olive oil.
- Add herbs, seasonings, wild rice, cranberries, pecans, and broth. Warm the filling.
- Fill roasted squash halves and bake another 10–15 minutes until heated through.