Cheap Healthy Food Ideas

Hey everybody, I'm a recent myfitnesspal.com joiner!! I'm 18 and a senior in high school. Currently, I'm only able to work a part-time job with not a whole lot of hours so my paychecks are kinda small. I need some healthy food options that won't break my bank! Can anybody give me any ideas? It would be grealty appreciated! Thanks so much :)