Cook onion and bell pepper in 1 tablespoon of oil in a large skillet over medium heat until softened.
In a large bowl, combine the cooked onion and peppers, sweet potato, beans, and seasonings. Spread about ½ cup of filling on ½ of a tortilla. Sprinkle with cheese and fold in half. Cook in a skillet over medium low heat until lightly browned. Flip and cook on second side until lightly browned and cheese is melted. Serve immediately.