Meal Prep Fiesta Chicken Rice Bowls

Name: Meal Prep Fiesta Chicken Rice Bowls
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: American
Ingredients: 1 tbsp olive oil; 1 lb chicken breasts (about 3-4 medium-sized breasts); 1 tbsp chili powder; 1 tsp salt; 1 tsp garlic powder; 1 tsp cumin; 1/2 cup corn; 1 small red onion, sliced; 1 red pepper, diced; 1 green pepper, diced; 1 yellow pepper, diced; 3/4 cup fresh salsa; 1/3 cup cilantro, chopped; 1/4 cup feta cheese (optional, divided); 1 cup dry brown rice; 2 cups water; 1 tsp butter