A comforting and easy-to-make casserole featuring layers of tender potatoes, savory ham, and melted cheese.
Preheat your oven to 350°F (175°C).
Preheating ensures even cooking from the start.
Slice the potatoes into thin rounds and the onion into rings.
Uniform slices help the potatoes cook evenly.
Combine the potato slices and onion rings in a microwave-safe bowl. Microwave on high for 10 minutes, stirring halfway through.
Microwaving reduces the baking time significantly.
Mix the sour cream, ham, and half of the shredded cheese into the microwaved vegetables.
Ensure the mixture is evenly coated for consistent flavor.
Transfer the mixture into a greased baking dish and sprinkle the remaining cheese on top.
Greasing the dish prevents sticking and makes cleanup easier.
Bake in the preheated oven for 45 minutes, or until the top is golden and bubbly.
Check the casserole halfway through to ensure even baking.
Let the casserole cool for a few minutes before serving.
Cooling allows the flavors to settle and makes serving easier.