I budget $120 a week for DF and I, but this includes all grocery items (toilet paper, cleaning items, toothpaste, moisturiser, etc).
I am assuming that for the $30, this does not include things like spices that are already in the pantry?
I cook too much of a range of things for dinners that I would not be able to plan everything to be under $30. Sometimes we have salmon which costs $15 just for the fish!
But if I were to truly buckle down, I would buy around $20 worth of vegetables from the growers market, a bag of dried beans, tinned tomatoes, pasta and some rice, along with some yoghurt for breakfast and a loaf of bread (i get bread for free so this does not factor into my costs) I would have a stirfry with rice one night, make up a batch of vegetarian mexican chilli beans and have that with salad and baked potato one night, then rice the next night. Then I would probably have a vegetable sauce with the pasta, and the next night roast vegetables with salad. I would make a batch of soup for the next night, with beans and pasta in it. I could probably use that for lunches as well, and then for the last night I would have toasted sandwhiches with leftover roast veges inside.
DF would have toast for breakfast and I would have yoghurt and banana.