From SNAP there is SNAP Ed. Anyone who has gone from a good salary job to being on SNAP, has had not only their wallet and ego deflated, but their gourmet foodie lifestyle has withered.
This link has some very useful information for buying healthy food, wisely and economically.
There is an abundance of information: Guides, lists, budgeting help, recipes.
Just know that there are resources and people that are interested in helping.
Click on this link and you just might find something.