My grandmother used to make this growing up during the summer months and it was always fork tender and filling. Just 3 simple ingredients from the pantry.

Sliced potatoes, onions, and canned corned beef ingredients
Sliced potatoes, onions, and canned corned beef ingredients

Directions

1. Preheat the oven to 375°F and lightly grease a glass baking dish.

Greased glass baking dish on a kitchen counter
Greased glass baking dish on a kitchen counter

2. Spread a layer of sliced potatoes in the bottom of the dish, then add a layer of sliced onion and a layer of corned beef broken into shreds. Repeat the layers until all the ingredients are used, finishing with potatoes on top.

Layered potatoes onions and shredded corned beef in baking dish
Layered potatoes onions and shredded corned beef in baking dish

3. Cover the dish tightly with foil and bake for 1 hour.

3. Cover the dish tightly with foil and bake for 1 hour.

Foil-covered baking dish ready for the oven
Foil-covered baking dish ready for the oven