01 -
Heat oven to 175°C to ensure even cooking.
02 -
In a large bowl, mix diced potatoes, ham, cheddar cheese, cream of mushroom soup, milk, garlic powder, onion powder, salt, and pepper until thoroughly blended.
03 -
Grease a 23x33 cm baking dish with cooking spray or butter to prevent sticking.
04 -
Transfer mixture into the baking dish, spread evenly, and bake for 45 to 50 minutes until potatoes are tender when pierced with a fork. Let rest for a few minutes before serving.