Find your local market and get your butt over there.
You will find a huge variety of fresh fruits, yummi vegetables, nuts, seeds and excellent cuts of meat at a really affordable price. The key is to mix it up and eat high quality foods.
Supermarkets are full of processed foods with added salts, sugars, colors and all sorts of additives that do the human body harm.
The fruits and vegies from the market have a stack of enzymes which are important for your energy, digestions and even absorbtion of key nutrients. So stear clear or packet foods and all the junk at the supermarket and stear your health towards high quality produce that will make you healthier and stronger.