Caramelized Onion and Bacon-Stuffed Acorn Squash

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Roasted acorn squash halves filled with a savory mix of caramelized onions, crispy bacon, and herbs for a festive autumn side dish. This american-inspired halloween (vegetarian option) ready in about 65 minutes pairs acorn squash, bacon strips, yellow onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 50 min Serves 4 American cuisine 350 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 400°F. Rub 2 halved and seeded acorn squash with 1 tbsp olive oil and sprinkle 1/2 tsp salt on cut sides. Place cut side down on baking sheet and roast for 30 minutes until tender.
  2. Step 2: While squash roasts, heat 2 tbsp olive oil in a skillet over medium heat. Add 6 chopped bacon slices and cook for 5 minutes until crispy and fat rendered.
  3. Step 3: Add 1 large thinly sliced yellow onion to bacon; cook 15 minutes stirring occasionally until onions are deeply caramelized and golden brown.
  4. Step 4: Stir in 1 tbsp maple syrup, 1 tbsp fresh thyme leaves, 1/2 tsp salt, and 1/2 tsp black pepper; cook another 2 minutes until syrup is absorbed.
  5. Step 5: Remove squash from oven and turn cut side up. Fill each half evenly with caramelized onion and bacon mixture.
  6. Step 6: Optionally, sprinkle 1/2 cup crumbled goat cheese over the filling. Return to oven and bake for an additional 10 minutes until cheese softens and edges brown slightly.
  7. Step 7: Let cool 5 minutes before serving to allow flavors to meld.

Frequently asked questions

How long does Caramelized Onion and Bacon-Stuffed Acorn Squash take to make?

Total time is about 65 minutes (15 min prep + 50 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Caramelized Onion and Bacon-Stuffed Acorn Squash?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep acorn squash from drying out.

Can I substitute ingredients in Caramelized Onion and Bacon-Stuffed Acorn Squash?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Caramelized Onion and Bacon-Stuffed Acorn Squash for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Caramelized Onion and Bacon-Stuffed Acorn Squash vegetarian option?

Yes — this recipe is tagged vegetarian option based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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