Follow these simple steps to make your incredible Healthy Stuffed Bell Peppers:

1. Preheat the Oven: Begin by preheating your oven to 375°F (190°C).
2. Prepare the Peppers: Wash the bell peppers, slice the tops off, and remove the seeds and membranes. Place them in a baking dish, cut side up.
3. Sauté the Veggies: In a skillet, heat a little olive oil over medium heat. Add the diced onions and minced garlic, sautéing until translucent.
4. Mix the Filling: In a large bowl, combine the cooked quinoa or brown rice, black beans, corn, diced tomatoes, sautéed onions, and garlic. Add chili powder, cumin, paprika, salt, and pepper. Mix well.
5. Stuff the Peppers: Spoon the filling generously into each bell pepper until they are fully packed.
6. Top with Cheese: If desired, sprinkle shredded cheese on top of the stuffed peppers for added flavor.
7. Bake: Cover the baking dish with foil and bake in the preheated oven for 25-30 minutes. Remove the foil for the last 5-10 minutes to achieve a bubbly, golden-top effect.
8. Cool and Serve: Once cooked, remove from the oven and allow the peppers to cool for a few minutes. Garnish with fresh cilantro or parsley before serving.

Following these steps will lead you to create delicious, healthy stuffed bell peppers that are sure to satisfy everyone at the table.