A lot of asian markets have great deals and are worth going out of your way for deals if there is one near you. Everyone else is talking about fruit being expensive, but I go to Korean markets in LA that currently sell 5-10lbs of oranges for 99 cents and pineapples for $2 on weekends, just to start things off. $2/lb sliced ribeye, 20 cents for a small bunch of scallions, $4.99 box of mango...you get the idea. It's entirely feasible to eat tons of fresh fruit and even meats and pricier veggies on a tight budget if you know where to shop.