1 to 1 1/2 pounds boneless skinless chicken breasts, chicken thighs, or a mix
1 14.5-ounce can diced tomatoes
1 cup chicken stock, divided, plus more if needed
2 teaspoons chili powder
2 teaspoons salt
1 teaspoon cumin
1 cup brown rice
1 15-ounce can black beans, drained and rinsed
1 cup frozen corn
Optional toppings
Shredded cheese, chopped cilantro, sour cream, diced avocado, salsa, hot sauce, diced green onions, shredded lettuce
Directions: