French toast. Both my babies loved pilchards and sardines on toast from quite a young age. They stink though. I buy the tins with no bones as I am lazy. You can mash them into the toast or blend them with phillidelphia to make a sort of pate.
Pilchards on toast- well I buy tinned pilchards in tomatoe sauce and just spread it onto buttered toast- you can even grill it- with or without cheese! It's really good for you (Omega 3 etc) not sure about the salt content though so you might want to check.