Prep Time: 20
Cook Time: 35
Serves: Serves: 6
Heat oil in a large saucepan over medium heat. Add onion and garlic; cook, stirring often, 5 minutes. Stir in tortillas, chili powder and cumin; cook 3 minutes, stirring once. Add tomato and tomato paste; cook 1 minute. Add broth; bring to a boil over high heat. Cover; reduce heat and simmer 30 minutes.
Transfer 1/3 of soup to a blender container. Cover; hold a pot holder over cover to keep hot soup from popping the cover off. Blend until soup is pureed; transfer to 2 warmed shallow serving bowls. Repeat twice with remaining soup. Garnish with cheese, avocado, tortilla chips and cilantro. Serve with lime wedges.