Potato, Egg and Cheese Breakfast Taquitos 1 large russet potato, peeled and cut into 1-inch chunks half an onion, chopped 1 tablespoon vegetable oil 1/2 tablespoon butter 4 eggs 1/2 cup shredded cheddar cheese salt and pepper 2 large flour tortillas (I used the burrito size) salsa, for serving (optional)