I was avoiding potatoes for years, but I can eat them again now, post surgery, but they do still sometimes cause a little discomfort.
I'm forever eating salad, i.e. lettuce, tomatoes, cucumber, sometimes peppers, as well as apples and bananas. But I'm not very good on cooked vegetables, and learned to avoid gas causing ones like broccoli and cauliflower last year and still haven't dared to try them again.
I quite often buy smoothies. I keep meaning to start making my own.