Creating Stuffed Acorn Squash is straightforward. Follow these simple steps to bring this delicious recipe to life:

1. Preheat the Oven: Preheat your oven to 400°F (200°C).
2. Prepare the Squash: Cut the acorn squash in half and scoop out the seeds. Place the halves cut side up in a baking dish.
3. Season the Squash: Drizzle olive oil over the cut sides of the squash. Sprinkle with salt and pepper.
4. Bake the Squash: Place the baking dish in the preheated oven and bake for about 30 minutes or until the flesh is tender.
5. Cook the Filling: While the squash is baking, heat a tablespoon of olive oil in a skillet over medium heat. Add the diced onion and bell pepper. Sauté for 5 minutes until softened.
6. Add Garlic and Spices: Stir in the minced garlic, cumin, and chili powder. Cook for an additional minute until fragrant.
7. Combine the Filling: In a large bowl, mix the sautéed vegetables with cooked quinoa, black beans, and corn. Season with salt and pepper to taste.
8. Stuff the Squash: Remove the squash from the oven. Carefully fill each half with the quinoa mixture, pressing down gently to pack it in.
9. Bake Again: Return the stuffed squash to the oven and bake for an additional 10-15 minutes, until heated through.
10. Garnish and Serve: Once baked, remove from the oven and let cool slightly. Garnish with fresh cilantro and any optional toppings you desire.