In a large mixing bowl, combine shredded chicken, cooked rice, black beans, corn, salsa, cumin, chili powder, salt, and pepper. Mix well.
Spread half of the mixture in a greased casserole dish.
Sprinkle 1 cup of cheese on top.
Layer the remaining mixture on top and finish with the rest of the cheese.
Bake for 25-30 minutes or until cheese is bubbly and golden.
Serve hot, optionally topped with crushed tortilla chips.
Notes
For a vegetarian option, replace chicken with extra beans and roasted sweet potato cubes. For a creamy texture, mix in sour cream or Greek yogurt before baking.