Produce (even though it's August) and meat (even hamburger) cost a fortune around here.
What is your daily budget that does not buy enough normal ingredients?
(And frozen veggies are always cheap, lots for around a buck or two a pound.)
(Pork shoulder is usually about $2-3 bucks a pound. Damn good stuff if you simmer it long enough)
Brown rice is just a cheap as white, and is quite good for you, and won't make you chubby.