1-1/2 lb. lean ground beef
2 T. no-salt-added taco seasoning
1 15-oz. can no-salt-added diced tomatoes, undrained
1 15-oz. can no-salt-added pinto beans, drained and rinsed
1 15-oz. can no-salt-added black beans, drained and rinsed
3 c. unsalted beef broth
1 c. frozen corn
2 t. kosher salt
1 c. shredded iceberg lettuce
3/4 c. crushed tortilla chips
1/2 c. sour cream
1-1/2 oz. shredded Mexican cheese blend (1/3 c.)
Chopped fresh cilantro
Heat a large skillet over medium-high heat. Add beef and cook, stirring often, until browned and crumbled, about 8 minutes. Add taco seasoning and cook, stirring constantly, until fragrant, about 2 minutes. Transfer mixture to a 5-qt. slow cooker.
Stir tomatoes, pinto beans, black beans, beef broth, corn, and salt into beef in slow cooker. Cover and cook until flavors meld and mixture thickens slightly, about 4 hours on HIGH or 6-8 hours on LOW.
To serve, ladle soup into bowls. Top with lettuce, crushed tortilla chips, sour cream, cheese, and cilantro.
Serves 8.
Adapted from Cooking Light Slow Cooker, p. 39.