This oven baked 3-ingredient canned Spam potato casserole is the kind of practical, comforting meal that stretches a few pantry staples into something hearty and satisfying. Thinly sliced potatoes bake until fork tender while cubes of Spam turn savory and lightly browned, all held together by a simple creamy sauce that soaks into the layers as it cooks. It has the spirit of old-fashioned budget casseroles that many Midwestern families relied on for easy summer suppers, especially when the goal was to feed everyone well with very little fuss.
Serve this casserole with something fresh and simple to balance its richness, such as sliced tomatoes, buttered green beans, a crisp cucumber salad, or steamed peas. If you want to round it out into a bigger meal, add a side of dinner rolls or toast for scooping up the creamy sauce, and a little black pepper or hot sauce at the table works nicely for anyone who likes a sharper finish.
Oven Baked 3-Ingredient Canned Spam Potato Casserole
Servings: 6
Ingredients
1 can Spam, diced
2 pounds potatoes, peeled and thinly sliced
1 can condensed cream of mushroom soup
Directions
1. Heat the oven to 350°F and lightly grease a medium glass baking dish.
2. Peel the potatoes and slice them thinly, then dice the Spam into bite-size cubes.
3. In the baking dish, layer half of the sliced potatoes and half of the diced Spam. Spoon half of the condensed soup over the top, then repeat with the remaining potatoes, Spam, and soup.
4. Cover the dish tightly with foil and bake for 60 minutes. Remove the foil and continue baking for 20 to 30 minutes more, until the potatoes are fork tender and the top is golden in spots.
5. Let the casserole rest for 10 minutes before serving so the creamy sauce can settle slightly.
Variations & Tips
For a thinner sauce: If you prefer a looser, more spoonable casserole, stir a small splash of water or milk into the condensed soup before layering. That helps the sauce spread more evenly through the potatoes as they bake.
For even cooking: Slice the potatoes as uniformly as possible, about 1/8 inch thick. Thick slices can take much longer to soften, while very thin slices may break down too much.
For extra browning: If the top needs more color at the end, place the uncovered casserole under the broiler for 1 to 2 minutes, watching carefully so the creamy edges do not scorch.
To change the flavor: Cream of chicken or cream of celery soup can be used instead of cream of mushroom if that is what you have on hand. The casserole keeps the same easy method but takes on a slightly different character.