Easy Black Bean Tacos

Ingredients

• 1 medium onion, finely chopped
• 1 medium green pepper, finely chopped
• 1 small sweet red pepper, finely chopped
• 1 can (15 ounces) black beans, rinsed and drained
• 2 large tomatoes, seeded and chopped
• 2 cups shredded cabbage
• 1 cup fresh or frozen corn
• 2 tablespoons reduced-sodium taco seasoning
• 2 tablespoons lime juice
• 2 garlic cloves, minced
• 1 cup ready-to-serve brown rice
• 8 taco shells, warmed
• 1/2 cup shredded reduced-fat Mexican cheese blend
• 1/2 cup reduced-fat sour cream