
My five dogs cost me around £50 a month to feed, and thats on Prizechoice so definately not the cheapest option for meat.
Invest in a bigger freezer, buy in bulk from wherever you can - i can get a huge tray of chicken wings for not a lot from my local meat market, ditto veg, the rest i get from Prizechoice oh and tinned fish from asda.
If you go for a cheaper bulk supplier, source bones/bits from a butcher, and ask markets for the veg they dont want at the end of the day, you can do it quite a lot cheaper than i do, and most market traders will do you a decent discount on a tray of chicken wings or carcasses if you ask nicely/pre-order.
Its a little more work, and awkward when time is short but definately worth it id say.