My daughter was a preemie and many of them have eating issues. Mostly texture. My daughter ate white food and some yellow food. Elbow macaroni with white parm cheese from the Kraft green can. Nothing else, especially not Kraft mac and cheese (orange) and no parm cheese from Safeway can (orange). Eggs with cheese were okay. Cereal but not with milk, only milk in a cup on the side.
I decided not to argue about food with her. She ate what she ate. Many of my friends with preemies with issues went to eating clinics at children’s hospital, spent a lot of time tasting and urging and bribing. I just fed my kid what she liked. She liked everything plain, or on the side, so that’s what she got.
For her it was a texture thing. She doesn’t like things like yogurt, condiments, pudding, nothing banana ever ever ever, no ice cream with ‘things’ in it like nuts or berries. She’s added a lot more to her diet by trying the ‘plain’ version and then trying it with a sauce, or mixed together (with cheese!).