I eat pretty well as do my roommates. I spend usually $50 per week and a half if not less on food. It is usually something like this:

A couple pieces of fruit (Fruit every day is delicious but expensive, so I go 2-3 times a week with a good banana/pineapple or something)
A head or two of red-leaf lettuce
1-2 Pounds of Chicken
1-2 Pounds of Beef (Ground or not)
2 packs of pasta
2 bottles of pasta sauce
Eggs
Potatoes
Rice
1/2 - 3/4 pound of sliced turkey
Bread

I cut out most sweets and snacks out of my day and that saves a lot.