Cheesy Broccoli Rice Casserole

Name: Cheesy Broccoli Rice Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: American
Ingredients: 1 and 1/2 cups quick cooking white rice (about 4 cups cooked); 1/2 cup (1 stick) unsalted butter; 1 medium white onion, chopped; 4 cups fresh broccoli florets; 1 (10.5 ounce) can cream of chicken soup (1 and 1/4 cups); 8 ounces processed American cheese, divided (such as Velveeta) or 2 cups good-melting shredded cheddar cheese; 1/2 cup milk; 1/3 cup crushed potato chips