Whole fish is also a good cheap option. Small fish like sardines or sprats are very cheap and are very nutritous for a cat. They are full of omega oils and of course lots of vitamins and minerals. The only problem with this is that some cats are just not interested in them. I usually have to chop them up just a little for before mine will eat them. Also, depending on where you live, chicken wings can be very cheap and are excellent for cats teeth. My cats wouldn't touch raw chicken wings but I started giving them a few minutes grilling just to warm them up and then just cut through the skin to give the cats a head-start. They love them now and spend ages enjoying their food.

Bye the way, only feed your cats whole fish from large school fish (not near possible human fishing areas) because they could contain hooks. This is not likely but you can avoid the chance by buying fish that would never have contact with shore-fishermen.

Troy.