I eat out quite a bit - too much business travel. I've learned to stick to meat, veggies, no desserts, water with lemon (sometimes they forget the lemon - I've survived that so far ...). Salads can be traps - usually in the dressings, sometimes fruit or candied nuts are added. A caprese salad (tomatoes, mozzarella, balsamic) is usually safe. You can also ask for extra butter on the side, and liberally dose your veggies and meat. Quality won't be as good (grassfed meat is rarely found), but it's a practical alternative. Omelets are also a good choice.