Pritikin Recipes

I have a full load of 18 credits and I coach highschool volleyball and play on a traveling club team. I have almost no time to cook and this translates into an unhealthy diet for me. Any advice on how to eat better? I’m trying to just be healthier for my body, I don’t need to lose weight or anything, although that wouldnt be bad either.
Thanks!

My question again was about diet cooking tips and there have been some great answers