Pour all except 1 tablespoon fat from skillet; decrease heat to medium. Add onion; cook about 5 minutes or until softened. Add garlic, taco seasoning mix, cumin, red pepper, salt and pepper; cook 1 minute. Transfer to slow cooker. Add potatoes, beans, tomatoes, frozen corn, green chiles and broth to slow cooker. Cover; cook on Low heat setting 5 to 7 hours or until potatoes are tender.