My doctor said that this is normal, sometimes you have to introduce different foods at least 15x.
Mine barely eats too and she’s super skinny. I get worried a lot, to the point where I started giving her chocolate because I just wanted her to eat anything. I think it’s normal, sometimes giving them too much milk spoils their appetite. My daughter eats pasta she eats off of my plate. She doesn’t want to sit in her high chair. I don’t mind that at all so she’s been so I act like I’m eating and then she’ll start eating with me (maybe try that).
He also throws a fit if I won’t give him anymore food to feed the dog which is why he goes outside during meal times now lol