– unsalted butter (for greasing baking dish) – ▢1 lb. French green beans (or haricots verts, trimmed and cut into 2-inch lengths) – ▢2 cans condensed cream of mushroom soup – ▢3/4 cup half and half – ▢1 teaspoon garlic powder – ▢1/2 teaspoon kosher salt – ▢1/2 teaspoon ground black pepper – ▢1/2 lb. ham, diced – ▢1/2 cup diced onion – ▢2 1/2 cups shredded cheddar cheese – ▢1 1/2 cups canned French fried onions