Getting back into shape during school

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Hey, I am recently try to get back in shape. I used to wrestle and play rugby when I was in high school and then I broke my back early my freshman year of college. I am a sophomore now and I am allowed to start working out again. Unfortunately my freshman 15 was more like freshman 50 since I couldn't work out so I'm going to start going on a diet. Does anyone know easy and cheap recipes for health food that I can cook ( I have a kitchen now).

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