Preheat oven to 350 degrees F. Lightly spray an 8x8 baking dish with cooking spray/oil.
Saute onions until browned, about 5 minutes. Then add garlic and cook for another minute. Add ground turkey to the onion/garlic mix and cook until meat is no longer pink.
Combine turkey/garlic/onion mix, beans, Rotel, rice, olives, cilantro, and 1/4 cup of cheese together in prepared dish.
Top with remaining 3/4 cup of cheese.
Bake for 20 minutes in preheated oven or until cheese is melted.