Fry one whole onion, plus a chunk of something meaty (I sometimes do ham, bacon, or ground beef) in butter in a separate pan while the noodles get boiled. Make the cheese sauce in that pan without draining anything out, so you have all the fat and brownings in there. After draining the macaroni, add directly to the pan, mix, then serve onto plate. Add black pepper and ketchup overtop.
All those other bachelors eating their plain macaroni will get their own demons, but you’ll be free!
(When I buy bacon, ham, or ground beef, I buy the largest packs and portion it into sandwich bags in the freezer with one serving per bag. That way I can toss them in things like this. And onions are cheap as shit.)