Place 2 tablespoons green chiles and next 6 ingredients (through enchilada sauce) in a 3 1/2-quart electric slow cooker; stir well. Cover with lid; cook on low-heat setting 4 hours.
Combine remaining 1 tablespoon green chiles, egg substitute, muffin mix, and roasted bell peppers in a bowl. Spoon batter evenly over bean mixture in slow cooker. Cover and cook 1 hour or until corn bread is done.
Sprinkle cheese over corn bread. Cover and cook 5 minutes or until cheese melts. Top each serving with sour cream; sprinkle with cilantro.