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Freeflourish
Gluten-Free High-Protein Lentil and Quinoa Stuffed Acorn Squash
By Freeflourish Test KitchenReviewed by Freeflourish Editorial TeamPublished Apr 14, 2026 · Updated Jul 6, 2026
American-inspired
50 mins
glutenfreehighproteinfamilymealeasyquickrecipeshealthymaincoursebudgetfriendlyvegetariandairyfreeoptions
This easy, nutritious gluten-free stuffed acorn squash recipe combines protein-packed lentils and quinoa with aromatic herbs and vegetables for a comforting main course. Ideal for healthy family meals, quick dinners, and budget-friendly gluten-free eating.
Prep
15 min
Cook
35 min
Total
50 min
Servings
4
Difficulty
easy
Cuisine
American-inspired
Ingredients
Servings
4
- 2 medium acorn squashes, halved and seeded
- 1 cup dry green or brown lentils, rinsed and drained
- 1/2 cup quinoa, rinsed and drained
- 3 cups vegetable broth or water
- 1 small yellow onion, finely diced
- 2 cloves garlic, minced
- 1 medium carrot, finely chopped
- 1 stalk celery, finely chopped
- 1 tablespoon olive oil
- 1 teaspoon ground cumin
- 1/2 teaspoon smoked paprika
- 1/4 teaspoon ground black pepper
- 1/2 teaspoon salt, or to taste
- 1/4 cup fresh parsley, chopped
- Juice of 1/2 lemon
- Optional
- 1/4 cup toasted pumpkin seeds for garnish
Instructions
-
Preheat your oven to 400 degrees F. Place the acorn squash halves cut-side down on a baking sheet lined with parchment paper or foil. Roast for 25-30 minutes, or until the flesh is tender but still holds its shape. Remove from oven and set aside.
-
While the squash roasts, prepare the lentil and quinoa filling. In a medium saucepan, combine lentils, quinoa, and vegetable broth or water. Bring to a boil, reduce heat to a simmer, cover, and cook for 20-25 minutes until tender and liquid is absorbed. Remove from heat.
-
Heat olive oil in a skillet over medium heat. Add diced onion, garlic, carrot, and celery. Sauté 5-7 minutes until softened and aromatic.
-
Add cooked lentils and quinoa to the skillet with vegetables. Stir in cumin, smoked paprika, black pepper, and salt. Cook 2-3 minutes, stirring to meld flavors.
-
Remove from heat, stir in fresh parsley and lemon juice. Taste and adjust seasoning if needed.
-
Spoon the lentil and quinoa filling generously into each roasted acorn squash half, pressing lightly to fill.
-
Return stuffed squash to the oven and bake 8-10 minutes to warm through and blend flavors.
-
Remove from oven, let rest 5 minutes. Garnish with toasted pumpkin seeds if desired. Serve warm.
Tips
Allergen Overlap Note
Check every packaged ingredient for certified gluten-free status, especially spices, broths, sauces, seed products, and baking staples. Use clean prep surfaces, dedicated utensils, and fresh parchment or cookware when preparing lentil quinoa stuffed acorn squash for someone with celiac disease.
Texture Expectations
The squash should be tender enough to scoop while still holding its shape, and the lentil quinoa filling should be moist but not soupy. Resting the squash briefly helps the filling settle before serving.
Dining With Non-GF Family Note
Serve each squash half as its own gluten-free portion with a clean spoon for the filling. If bread or other gluten sides are offered, place them on a separate board away from the squash platter.
Frequently Asked Questions
- Can I make Gluten-Free High-Protein Lentil and Quinoa Stuffed Acorn Squash ahead?
- Yes. Prepare the components ahead when practical, then store and reheat according to the storage guidance so the texture stays close to fresh.
- How do I keep this recipe gluten-free?
- Use certified gluten-free packaged ingredients and avoid shared utensils, boards, pans, or toppings that touched gluten-containing foods.
- Can I adjust the main ingredients?
- Yes. Use the ingredient replacement notes to choose swaps with similar moisture, protein, or cooking behavior.
- What is the best way to serve it with mixed-diet family?
- Serve the gluten-free recipe first with dedicated utensils, then keep any gluten-containing sides or toppings separate.
Ingredient Replacements
- Juice of 1/2 lemon: Use a certified gluten-free equivalent and choose a similar ingredient with matching moisture, texture, or cooking time. Check labels for shared-facility warnings when cooking for celiac disease or multiple allergies.
- Optional: 1/4 cup toasted pumpkin seeds for garnish: Use a certified gluten-free equivalent and choose a similar ingredient with matching moisture, texture, or cooking time. Check labels for shared-facility warnings when cooking for celiac disease or multiple allergies.
- main vegetable: Use a certified gluten-free equivalent and choose a similar ingredient with matching moisture, texture, or cooking time. Check labels for shared-facility warnings when cooking for celiac disease or multiple allergies.
- protein: Use a certified gluten-free equivalent and choose a similar ingredient with matching moisture, texture, or cooking time. Check labels for shared-facility warnings when cooking for celiac disease or multiple allergies.
- seasoning: Use a certified gluten-free equivalent and choose a similar ingredient with matching moisture, texture, or cooking time. Check labels for shared-facility warnings when cooking for celiac disease or multiple allergies.
Storage and Reheating
Store stuffed squash halves in airtight containers for up to 4 days. Reheat covered in a 325 degrees F oven until warm, then uncover briefly if the filling needs a drier finish.
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