Saute onions over medium heat in a large pan or skillet in two tablespoons of olive oil.
Season chicken breasts with salt and pepper.
Once the onions have softened, increase heat to medium high and add chicken breasts and brown.
Add the garlic and cook for an addition minute or two.
Push chicken breasts to one side in the pan and add a tablespoon of olive oil to other side.
Add the uncooked rice to the olive oil and saute it for 2 to 3 f minutes.
Add the enchilada sauce, cumin, diced tomatoes and water. Stir to combine.
Bring to a boil then lower to simmer, covering the pan with a snug fitting lid.
Cook for approximately 15 minutes or until the rice is tender and liquid absorbed, stirring occasionally.
Sprinkle with cheese, cover again, and let sit for 2 minute, or until the cheese melts.
Top with your favorite toppings and enjoy!