These vegetarian stuffed peppers are a delicious and healthy dinner option. The peppers are filled with a mixture of quinoa, black beans, corn, tomatoes, and spices. They are then topped with shredded cheese and baked until the cheese is melted and bubbly. This dish is high in fiber, protein, and vitamins. It's also gluten-free and can be made vegan by omitting the cheese. Serve it with a side salad for a complete and nutritious meal.