Homemade Cheesy Broccoli Chicken and Rice Casserole - cookrisp

Ingredients

• 1 pound chicken breasts, cut into 1x1-inch cubes
• 1 small onion, finely chopped
• 2 cloves garlic, minced
• 1 ½ cups white long grain rice, rinsed
• 2 cups chicken stock
• 2 cups water
• 3 cups broccoli florets, roughly chopped
• ½ cup milk
• 2 cups sharp cheddar cheese, shredded (divided)