Ingredients
For the Acorn Squash
- 2 medium acorn squash
- 2 tbsp extra-virgin olive oil, divided
- ½ tsp salt
- ¼ tsp black pepper
For the Filling
- 1 tbsp olive oil
- 1 small yellow onion, finely diced
- 2 cloves garlic, minced
- 1 cup mushrooms, finely chopped
- 2 cups fresh spinach, chopped
- ½ tsp dried thyme
- ½ tsp dried Italian seasoning
- ¼ tsp red pepper flakes, optional
- ½ cup cooked quinoa
- ½ cup freshly grated Parmesan cheese
- ⅓ cup pine nuts, lightly toasted
- 2 tbsp fresh parsley, chopped
- Salt and black pepper, to taste
- 1–2 tbsp vegetable broth, if needed
For Topping
- 2–3 tbsp freshly grated Parmesan
- 1 tbsp toasted pine nuts
- Fresh parsley
- Drizzle of olive oil
Instructions
1. Prepare the squash
Preheat your oven to 400°F (200°C).
Carefully cut the acorn squash in half lengthwise. Scoop out the seeds and stringy center with a spoon.
Brush the cut sides with about 1 tablespoon olive oil and season with salt and black pepper.
Place the squash cut-side down on a parchment-lined baking sheet.
2. Roast the squash
Roast for 30–35 minutes, or until the flesh is tender when pierced with a fork.
Remove from the oven and carefully turn the squash cut-side up.
3. Make the filling
While the squash is roasting, heat 1 tablespoon olive oil in a large skillet over medium heat.
Add the diced onion and cook for 3–4 minutes until softened.
Add the mushrooms and cook for another 4–5 minutes, until they release their moisture and begin to brown.
Stir in the garlic and cook for about 30 seconds.
Add the spinach, thyme, Italian seasoning, and red pepper flakes. Cook until the spinach wilts.
4. Add quinoa and cheese
Stir in the cooked quinoa and toasted pine nuts.
Add ½ cup Parmesan cheese and mix well. Season with salt and black pepper.
If the mixture seems dry, add 1–2 tablespoons vegetable broth.
5. Stuff the squash
Divide the filling evenly between the roasted squash halves, gently pressing it into the cavities.
Sprinkle the tops with additional Parmesan and pine nuts.
6. Bake again
Return the stuffed squash to the oven and bake for another 8–10 minutes, until the Parmesan is melted and lightly golden.
For extra browning, broil for 1–2 minutes, watching carefully.
7. Garnish and serve
Finish with fresh parsley, a drizzle of olive oil, and a few extra toasted pine nuts.
Serve warm.
Recipe Information
- Prep Time: 20 minutes
- Cook Time: 45–50 minutes
- Total Time: About 1 hour 10 minutes
- Servings: 4
- Course: Main dish / Side dish
- Cuisine: American-inspired / Mediterranean-style
- Difficulty: Easy
Nutrition Information
Approximate per serving; values vary depending on ingredient brands and portion sizes.
- Calories: 410
- Protein: 13 g
- Carbohydrates: 45 g
- Fiber: 7 g
- Net Carbs: 38 g
- Fat: 22 g
- Saturated Fat: 5 g
- Sodium: 430 mg
- Sugar: 5 g
Complete Nut & Allergen Information
Contains:
- Pine nuts: Yes
- Dairy: Yes, Parmesan cheese
- Gluten: No, when using certified gluten-free quinoa and seasonings
- Peanuts: No
- Tree nuts: Pine nuts are botanically seeds but are commonly included in tree-nut allergen considerations.
Important allergy note:
Pine nuts can cause serious allergic reactions in some people. If serving someone with a nut allergy, replace the pine nuts with pumpkin seeds (pepitas) or sunflower seeds only if those ingredients are safe for them.
Always check packaged Parmesan, seasonings, broth, and other prepared ingredients for manufacturer-specific allergen statements when cooking for someone with a severe allergy.
Easy Substitutions
- Pine nuts → Pumpkin seeds, sunflower seeds, or chopped walnuts
- Quinoa → Brown rice, wild rice, couscous, or farro
- Spinach → Kale or Swiss chard
- Mushrooms → Diced zucchini or bell peppers
- Parmesan → Pecorino Romano or a vegetarian Parmesan alternative
- Quinoa + vegetables → Cooked lentils for a higher-fiber filling
Q&A
Q: Do I have to peel the acorn squash?
No. The skin becomes tender during roasting and is edible. Most people simply eat the soft flesh and leave the outer skin if preferred.
Q: Can I prepare the squash ahead of time?
Yes. Roast the squash up to 1 day ahead and refrigerate it. Prepare the filling separately, then stuff and bake when ready to serve.
Q: Can I make this completely vegetarian?
Yes. The recipe is vegetarian as written. If needed, use a vegetarian Parmesan and vegetable broth.
Q: Can I make it vegan?
Yes. Replace Parmesan with a plant-based Parmesan alternative or nutritional yeast.
Q: Can I use walnuts instead of pine nuts?
Absolutely. Chopped toasted walnuts add a delicious crunchy texture.
Q: Can I use pumpkin seeds instead of pine nuts?
Yes. Pepitas are an excellent nut-free alternative for people who can safely consume seeds.
Q: Can I make this gluten-free?
Yes. The ingredients are naturally gluten-free, but check packaged seasonings, broth, and cheese for cross-contact if necessary.
Q: How do I store leftovers?
Place cooled stuffed squash in an airtight container and refrigerate for up to 3 days.
Q: How do I reheat it?
Reheat in a 350°F (175°C) oven for 15–20 minutes, or microwave individual portions until heated through.
Q: Can I freeze stuffed acorn squash?
Yes, although the texture of the squash and filling may soften slightly after thawing. Freeze tightly wrapped for up to 2 months and thaw overnight in the refrigerator before reheating.
Q: Can I add meat?
Yes. Cooked Italian sausage, ground turkey, shredded chicken, or bacon can be mixed into the filling for a higher-protein version.
Q: What can I serve with stuffed acorn squash?
It pairs beautifully with a simple green salad, roasted vegetables, grilled chicken, salmon, or a Mediterranean-style cucumber and tomato salad.
Leave a Reply