I would personally just feed them what your other kids are having and either mash with a fork, chop up small or leave in large pieces so they can use their hands. They don't need any "special" foods even if they are only used to pureed baby food. Just start as though you are weaning a 6 month old. No sense in spending money unnecessarily on baby food when they are old enough to be able to consume table food. Just offer a limited variety and go from there.