BEEF BURRITO SOUP

Name: BEEF BURRITO SOUP
Ingredients: 1 lb lean ground beef; 1 cup chopped onion; 2 garlic cloves, minced; 4 cups reduced sodium beef broth (fat free); 1 ½ cups cooked brown rice; 1 can (28oz) no salt added diced tomatoes, not drained; 1 can (6oz) pure tomato paste; 1 can (15oz) no salt added black beans, drained and rinsed; 1 ½ cups corn kernels, fresh or frozen; 1 medium red bell pepper, seeded and chopped; 1/4 cup corn flour; 1 tbsp reduced sodium taco seasoning; sour cream, avocado, cilantro or shredded Mexican cheese blend for topping (optional)