Filled with a bold, savory mix of quinoa, beans, and taco seasoning, topped with cheese, and baked until bubbly, they are ideal for busy weeknights or vegetarian meal-prep.
Drizzle each half with olive oil and rub it on all sides to coat. Season with salt and pepper. Place the peppers cut side up in the 9×13 pan and bake for 15-20 minutes to soften. Remove from the oven and set aside.