Step 1

Preheat oven to 375 degrees.

Step 2

Lightly coat a 9 x 13-inch baking dish with cooking spray.

Step 3

Add cream of chicken soup and water to the prepared dish. Whisk together until completely combined.

Step 4

Stir in uncooked rice, uncooked chicken, onion, garlic, and frozen broccoli. Season salt and pepper.

Step 5

Cover with foil and bake for 1 hour, or until the liquid is absorbed, the rice is tender, and the chicken is cooked through.

Step 6

Sprinkle the top of the casserole with grated cheese and return to the oven for a few more minutes, until the cheese is melted.