I had someone sort of do that to me the other day, too. I work in a very small group (5 total) and the boss sometimes takes us all out to lunch. He did so recently for one of our coworkers birthday, and we went to a local Thai restaurant. Now, I do enjoy Chinese food, unlike the OP, but I am not particularly fond of the few bits of Thai food I have tried. A few days before the lunch I asked about what kind of food they had (plotting for myself if I needed to very discreetly eat a snack before lunch just in case). I was told they also serve Chinese food. We go the restaurant, I order Chinese food, they all order Thai. One of the ladies puts some of her dish on my plate and I thank her and try it. It's good, and I tell her so. She says that she will teach me to like Thai food. I explained to her that I don't really mind trying new things, but when I am completely out of my depth about what the menu options even are, I sometimes prefer to go with the food I already know that I enjoy. I thought this was sufficient but I got the very serious impression that she thought I was being rude for ordering off the menu, but ordering Chinese when everyone else was having Thai! (She is also twice my age, so maybe it's a weird psuedo-mothering thing and she was honestly just trying to broaden my culinary horizons. I didn't particularly like being, even briefly, lectured about my ability to order off a menu in front of all of our other coworkers, though.)
So, dear OP, I think they may have been just trying to include you, and maybe thought you were a bit intimidated about the food or company, and they probably didn't mean to be rude, though I can certainly empathize with being uncomfortable and then wondering if you might have been the rude one (though I certainly don't think you were being rude).