yes frozen 'value' beef minced or chicken is fine - Iceland are pretty good value - you can get a bag of chicken breasts for �2.99, which for one dog would last a couple of weeks if you are using it as a taster to her complete food. I also get my butcher to de bone chicken legs which he sells me quite cheaply. I boil them up with some veggies (broccoli, spinach, greens, carrots, and pasta) and add it as a taster to their complete diet, and they love it. I only cook up two batches a week, so it works out quite cheap, probably cheaper than the tinned stuff. Incidently, my mother in law does the same, and having a small dog she cooks up a load, and bags it up into individual meals and freezes them, and just gets out a bag a day.