Heat olive oil in a large oven-safe skillet over medium heat. Add onion and garlic, and cook until softened, about 5 minutes. Add bell peppers, chili powder, smoked paprika, cumin, oregano, salt, and pepper. Cook until fragrant, about 2 minutes.
Add beans, tomatoes, and vegetable broth. Stir to combine. Bring to a simmer and cook for 5 minutes.
Transfer skillet to preheated oven and bake for 25 minutes, until bubbling and lightly browned on the top.
Serve hot.
Interesting Facts
Beans are a great source of protein and are high in fiber.
This dish is a great way to get your veggies in for the day.
This casserole can be made ahead of time and reheated for an easy meal.