Preheat oven to 350°. Roll chicken pieces in seasoning mix.
Stir rice, water, and tomato juice together. (Add corn if using). Pour into a greased 9 x 13 baking dish (or whatever fits your chicken pieces).
Place chicken pieces on top of rice. Cover dish tightly with foil, and bake 30 minutes. If breast pieces are very thick, it may take 35-40 minutes.
Remove foil and pour salsa on top of chicken. Sprinkle with the grated cheese.
Return to oven uncovered for 15-20 minutes until cheese melts and is bubbly.
Check chicken for doneness with a meat thermometer (165°) or see that juices run clear and there is no pink left.