Agree with all above. After 12 months, there should be no issues (assuming no allergies). Chicken, Deli meats and hot dogs are the only meat my 3 year old will eat. A lot of LO's do not like red meat, pork etc. I think with mine it is probably a texture/chewing thing. So, if not for deli meats, she would hardly eat any meat at LO.
PP is right about presevative/salt content, but given how small the portion sizes, if you give these in moderation, you should have no issues.