@Katherine yeah I was worried he was choking on it , but maybe it is a texture thing
Mine does that when he eats something he doesn’t like, taste or texture wise. Certain chicken tenders he does that with because like @Katherine said they’re stringy sometimes so I usually cut them up smaller. But chicken nuggets he never spits out 😆
My daughter does that if she doesn't like something, texture is weird, etc. Maybe try cutting smaller pieces? Sometimes they're stringy