1 small onion, chopped
1 15.5 oz can black beans, drained
1 15.5 oz can kidney beans, drained
1 8 oz can tomato sauce
10 oz package frozen corn kernels
2 10 oz cans diced tomatoes w/chilies
4 oz can chopped green chili peppers, chopped
1 packet reduced sodium taco seasoning or homemade, see below
1 tbsp cumin
1 tbsp chili powder
24 oz 3 boneless skinless chicken breasts
1/4 cup chopped fresh cilantro

To make your own taco seasoning, omit the packet, cumin and chili powder above and use below instead:
1 1/2 tablespoons cumin
1 1/2 tablespoons chili powder
1/4 teaspoon garlic powder
1/4 teaspoon onion powder
1/4 teaspoon dried oregano
1/2 teaspoon paprika
1 teaspoon kosher salt
1/2 teaspoon black pepper