Easy Slow Cooker Cheesy Potatoes

1 (2 pound) package frozen Southern-style hash brown potatoes, thawed

4 cups shredded Cheddar cheese

2 (10.75 ounce) cans condensed cream of chicken soup

1 (8 ounce) container sour cream

1 cup chopped yellow onion

1 cup milk

1 pinch seasoned salt, or to taste

1 teaspoon minced garlic

1 cup crushed cheese-flavored crackers (such as Cheez-It®), divided

Mix hash brown potatoes, Cheddar cheese, cream of chicken soup, sour cream, onion, milk, seasoned salt, garlic, and 1/2 cup cheese-flavored crackers in a slow cooker.

Cook on Low, stirring occasionally until cooked through, about 2 hours. Stir and top with remaining 1/2 cup cheese-flavored crackers.