Chunks of undigested food

Do your babies’ poops still have pieces of undigested food?

I always feed baby banana And I always see small pieces of undigested banana inside/all over her poop. Idk if she’s fully chewing them moreso than swallowing most of them so maybe that’s why? But is that normal? She only has 1 bottom tooth and 2nd one coming thru so I doubt much chewing is going on.

Otherwise idk what the small yellow chunks are? Could they be globes of mucus? But I would think mucus is less solid formed