Dry dog food 1 and a half 1.5 kg bags (Southborough TN4)
Hills Science Plan Senior 11+ Small dogs up to 10 kg. My Yorkie (no longer with us) used to eat these. They are small for small dogs. I don't know how different the formula is for older dogs - possibly they would be ok for younger ones too.
This offer has been gifted to someone and is no longer available.