Pre-heat oven to 425 degrees F. Add rice, beans, corn, tomatoes, spices, taco sauce and about half the shredded cheese to a large bowl. Mix everything together well and season with salt and pepper, to taste.
Step 2
Transfer rice and bean mixture to a large baking dish and spread out with a spatula. Top with remaining shredded cheese and top with foil. Bake casserole for 20 minutes, remove the foil and bake until cheese is melted, about 10 more minutes or so.
Step 3
Remove from the oven and let cool for a few minutes before enjoying. You can add the toppings to the entire casserole pan or each person can add them to their own portion.