4Bread slices (white or whole wheat)
4 slicesCheddar cheese
2 mediumPotatoes, peeled and boiled
2 tablespoonsButter, divided
2 tablespoonsMilk
½ teaspoonSalt
¼ teaspoonBlack pepper
¼ teaspoonGarlic powder (optional)
2 tablespoonsAll-purpose flour
1 tablespoonOlive oil