Cheap, tasty microwave eats

Hi guys, I'm currently living in a college dorm(meaning I only have access to a microwave and a electric kettle), on a pretty tight budget. Over spring break, I'm hosting my friend for a week and there aren't going to be any dining halls open. Have you all got some advice for cheap food that can be cooked in a microwave, that I won't get sick of eating for a week?