Boil pasta as per packet instructions.
Put into a pot a little butter and cook a finely hopped onion with chopped pieces bacon or ham.
Add fresh sliced tomatoes or a can of tomatoes seasoned with a pinch of sweet basil.
Pepper to taste.
Thicken with a little cornflour.
Add 1 cup grated cheese.
Stir well to melt cheese.
Serve over pasta, toast, sausages or rissoles.