College go-to: Easy Mac
Adult upgrade: Homemade Macaroni and cheese 

Macaroni and cheese doesn't just come in microwavable cups. There are people who work in restaurants who actually cook pasta and cheese together, for more than 10 minutes, on a stove. If you give them green slips of paper they will let you eat some. Or, if you're running short on bills, cook up your own mac-and-cheese the way your mom once did.