Try going to www.5dollardinners.com the who site is devoted to making dinner (and other meals) for at least four for five dollars and under for the whole meal (not just per person!) you could halve the recipes or freeze half once it's made.
Also, if you have a Save A Lot store near you go to www.Savealot.com and look through their recipes. Very cheap and really tasty!
Also there's www.thehillbillyhousewife.com who has a $90 and a $70 week menu for emergencies.... also very good, I've used them myself. Lots of recipes. same with www.livingonadime.com All fantastic sites! Good luck!