12 Says to them Jesus, Come, eat breakfast. Obviously, this is part of the appearance story genre. It may also be connected to similar stories about loaves and fishes. Fish seem to be a continuing theme. The following pericope is the story about Jesus questioning Peter and telling him to feed his sheep.
Eating also seems to be a connecting theme.
Kai legei autw, legei is replaced in some other witnesses by eipon , attested by B, C, f13, Sinaiticus, A, D, W, Q , Y etc. According to Nestle-Alan, the nominative singular Jesus seems doubtful to belong in this place. It seems a later explanatory addition. Apart from the variants cited above, there is no major textual critical problems in these three verses. He says to him, Feed the lambs of me.