No interest in eating

I have been trying solids since lo was 6 months. She is now a year and still has no interest in eating. It's been a pain. She only likes sweet creamy foods. Ive tried everyday since 8 months to feed her everything we eat and she could careless. I give her food on her tray and she plays with it...throws it on the floor. There will be some meals where she will eat a few pieces of grilled cheese etc but that's it. Doc is not worried yet because she is gaining weight but slowly now that she is walking. Doc says just keep offering. Anyone here have any suggestions. What could be the reason for this. FTM so I am not sure if I am worrying for nothing ☹️.