Easy Fiesta Chicken

Ingredients

• 2 teaspoons extra-virgin olive oil
• 1 pound chicken breasts, boneless and skinless, cut into bite-size pieces
• 1/2 medium yellow or red onion, chopped
• 1 tablespoon garlic powder
• 2 teaspoons onion powder
• 1 1/2 teaspoons paprika
• 1 1/2 teaspoons dried dillweed
• 1/2 teaspoon kosher salt
• 1/2 teaspoon cumin
• 1/2 teaspoon cayenne pepper, optional
• 1 medium red bell pepper, chopped
• 1 medium green bell pepper, chopped
• 1 (15-ounce) can reduced-sodium black beans, rinsed and drained
• 1 (15-ounce) can fire-roasted diced tomatoes
• 1 1/2 cups instant brown rice
• 1 cup low-sodium chicken stock
• 3/4 cup cheddar cheese, freshly grated
• fresh cilantro, to taste, chopped
• avocado, to taste, chopped
• sour cream or plain non-fat Greek yogurt, to taste