Slow-Cooked Southwest Stuffed Peppers - Vegetarian Ingredients: 4 medium sweet red peppers or 4 medium green bell peppers, tops cut off and seeds and pith removed 15 ounces black beans, rinsed and drained 1 cup monterey pepper jack cheese, shredded 1 cup salsa 1/2 cup white onion, chopped 1 cup frozen corn, thawed 2/3