@LulusMom1, I was in Lucerne and the Bernese Oberland last June and you might be interested in my trip report on this thread, which also includes suggestions by others. Switzerland recommendations sought - #13 by JenKalb
I really liked Maihofli in Lucerne and thought it was worth it. It’s a tasting menu but they cater to dietary preferences. Don’t think there was any pork on the menu that we had and maybe 1 meat item? - a sliver. It was a very beautiful and relaxing meal.
We also went to a really good upscale Peruvian restaurant, Pikante in Lucerne which I didn’t report. While they do use meats in their cuisine fish including raw fish is a big thing in Peru. We had a great meal with several fish standouts as well as a great beef lomo saltado.
Because I stayed up in Wengen for 2 weeks and then in Bern I don’t have eating reccs for interlaken tho I was there on a couple of days. I looked at staying there with my daughter too but I don’t remember finding anything compelling eating wise. Although it is convenient transportation hub, everything is close together and easy to access with the train system in Switzerland so you might want to consider staying at higher altitude instead. If you want further non-food suggestions please feel free to message me
