Dinner · Fall · Baking · Make ahead

Sausage Stuffed Acorn Squash with Mushrooms

Roasted acorn squash holds a savoury filling of Italian sausage, mushrooms and thyme. Parmesan melts over the top for an autumn dinner served in four squash halves.

1 hr 35 min4 servings
Timing breakdown · 7 timed stages

Allow about 95 minutes: 20 minutes to prepare, 45 minutes to roast while making the filling, 10 minutes to cool and stuff, 15 minutes to bake and 5 minutes to rest. Large squash may need longer.

Preparation
25 min
Cooking
60 min
Roasting Step 2
45 minutes
Cooking Step 3
5 minutes
Cooking Step 3
8 to 10 minutes
Preparation / waiting Step 3
1 minute
Preparation / waiting Step 4
10 minutes
Baking Step 5
15 minutes
Resting / cooling Step 6
5 minutes

Durations are taken from the method and may overlap. Some preparation steps are not timed. Optional stages are separate from the main meal.

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Roasted acorn squash halves filled with browned sausage, mushrooms and herbs under a golden Parmesan topping

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How to make Sausage Stuffed Acorn Squash with Mushrooms

  1. 01

    Heat the oven to 400°F (200°C). Wash and dry the squash. Stabilize each on a chopping board and carefully halve lengthwise beside the hard stem. Scoop out the seeds and stringy centres.

  2. 02

    Set the halves cut-side up on a rimmed baking sheet. Brush the flesh with 1 tablespoon oil in total. Sprinkle with half the measured salt and pepper. Roast for about 45 minutes, until a fork slides easily into the thick flesh.

  3. 03

    Meanwhile, warm the remaining oil in a large skillet over medium heat. Add sausage and break it into small pieces as it cooks for 5 minutes. Stir in mushrooms and onion; cook for 8 to 10 minutes, until tender and their released liquid has evaporated. Stir in garlic, thyme and the remaining measured salt and pepper for 1 minute. Cook the pork sausage through to 160°F (71°C), checking the thickest pieces without touching the pan with the thermometer.

  4. 04

    Reduce the oven to 375°F (190°C). Let the squash cool until safe to handle. Scoop some flesh into the skillet, leaving a roughly 1/4-inch layer against each skin so the shells hold together. Fold in half the Parmesan. Allow about 10 minutes altogether for cooling, scooping and filling.

  5. 05

    Mound the mixture into the four shells and sprinkle with the remaining Parmesan. If the filling will not all fit, place the extra in a small oven-safe dish alongside. Bake for about 15 minutes, until the cheese melts and the centre of each filling reaches 165°F (74°C). Continue baking if needed.

  6. 06

    Rest for 5 minutes. Scatter with parsley and serve one filled squash half per person. Scoop the tender flesh and filling from the shell as you eat.

Recipe questions

Can I use chicken or turkey sausage?

Yes, use raw Italian-style poultry sausage in the same quantity. Cook it to 165°F (74°C) in the skillet. Check the final stuffed squash filling reaches 165°F (74°C) as well.

Can I use white mushrooms?

White button mushrooms work in place of cremini. Chop them finely and cook off the released moisture so the filling does not become watery.

How do I store and reheat leftovers?

Refrigerate within 2 hours in shallow containers at 4°C (40°F) or colder. Use within 3 days. Reheat a portion in a covered oven-safe dish at 350°F (175°C) until its centre reaches 165°F (74°C); start checking after 20 minutes and allow longer for large or very cold portions.

Does the squash need to be peeled?

Leave the skin on to support the filling during baking. Serve in the shells and scoop out the cooked flesh.

Cooking & storage

Use the recipe’s specific storage directions when provided. Read the food storage guide for chilling and reheating food, and the measures guide before changing portions or ingredients.

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Adapted from Erin Clarke at Well Plated, with pork sausage and a savoury filling without apple or baking spices. The sausage-and-mushroom pairing also draws on Ashley Durand's recipe for Heinen's. Contains milk; check sausage labels for other allergens.

Adapted from Erin Clarke at Well Plated.

Additional guidance: Ashley Durand at Heinen's: sausage and mushroom stuffed squash · FoodSafety.gov: safe cooking and reheating temperatures · Health Canada food storage guidance