Add uncooked rice, frozen vegetables, diced onion, and garlic salt into your pot.
In a bowl whisk together broth and cream of chicken soup until smooth, pour this into your slow cooker and stir everything together.
Put cubed chicken on top, sprinkle with salt and pepper
Cover and cook on high 3.5-4 hours until chicken is cooked thru and rice is tender, low for 6-7 hours is an option as well. Sprinkle cheese on top to melt.