バナナパンを少し冷たくて食べる方がいいと思うので、出来たの後に食べなくて遠慮しちゃった
I think it is best

to eat banana bread a little chilled, so we restrained ourselves from eating it when it was finished.

昨日家に帰ったの後に、バナナパンをやっと食べれた
Yesterday, after returning home we could finally try it

息子はバナナパンが大好きのでとても嬉しそうと思った
My son loves banana bread so he seemed really happy