In a large pan heat oil add onion, black pepper, salt.saute it for 5 to 8 min.

Cook yellow peppers directly on another flame..if it becomes softer remove them from heat and make a thick puree using a blender.

Add puree,parmesan cheese in saute pan, stir it and let this cook for 8 to 10 min.when it becomes thicken and cheesey switch off the flame.

Add boiled macroni into the pan and cook it for 3 to 5 min.

Sprinkle some more cheese on top of it and its ready to serve hot macaroni yellow sauce cheese.