In a large bowl, combine 2 cans of condensed cream of mushroom soup, ¾ cup half-and-half, 1 teaspoon garlic powder, ½ teaspoon kosher salt, and ½ teaspoon freshly ground black pepper. Stir in the green beans, ½ pound diced ham, ½ cup diced onion, 2½ cups shredded cheddar cheese, and ¾ cup of canned French fried onions.