Don't know prices in the US, but, here, $5 probably could get me a loaf of bread, pasta, fresh vedgetables, even some grated cheese, enough for a meal for three or four. And that's not at a discount shop, but, when it comes to pasta and cheese indeed go for the budget product.
(I don't go for budget bread, experience taught me that neither me, nor my daughters finish a supermarket loaf of bread before it is not good to eat anymore)