Hi tracy, we had a bbq at the weekend, I had a small amount of salmon fillet, mashed up a little bit of potato salad and also manged some cucumber with a bit of hummus and tzatziki. Obviously it won't be so easy if you are not in control of the food being cooked, maybe take something with you?
I was a bit worried myself as I'm only 4 weeks post op but it all went down fine (just had to be careful not to have too much as it tasted lovely).
Hope you have a great time & the weather is nice x