- 3-1/2 to 4 cups leftover mashed potatoes
- 1/2 cup sour cream or plain Greek yogurt
- 2 eggs
- 1/2 teaspoon onion powder (optional)
- 1/4 teaspoon each kosher salt and freshly ground black pepper (use 1/2 teaspoon salt if leftover potatoes are not well seasoned)
- 4 slices bacon, cooked and crumbled
- 1/2 cup grated sharp cheddar cheese
- Optional garnish: chopped parsley or sliced green onions