So, sling hoo-har aside, and back to the OP.
I do a couple of things when out with 7mo DD who is BLW:
*If anything I order comes with a salad, I ask for portion of veg instead. Nearly everyone can accomodate this, and I munch the main meal and DD picks at the broccoli / carrots etc that the meal comes with.
*I try to order something with relatively un-fussed with meat, so steak, chicken breast, salmon. All of which DD can have
*I take a packet of little flavoured rice cakes or a peach or similar along incase I go for something she can't have (gammon?)
*Strangely, she likes the lemon out of my water glass too
doesnt seem to notice the sour taste, and its fruit. Win win.
*Adopt a mindset of a little bit won't harm. Today, for instance, she had a couple of sucks of ice lolly at the park. I would also give her a chip (I don't salt them).