You can tailor almost any food in a restaurant for you - the big problem is temptation! Go for salads with chicken breast, steak with veg, etc. You just have to make up your mind that you don't eat the icky stuff any more. Ensure that the server knows that NO carbs go on your plate (side dishes like pasta or whatever) to help resist temptation.

For late night munchies, try and get a moment to pop into a local grocery and grab a few munchies that are safe & have them with you. Check & see what time your hotel's room service stops running in case you can't get munchies from a store & need to order a salad.

oh yeah... nuts are not allowed on induction, but they are a heck of a lot better than a handful of potato chips from the mini-bar. carry a pack if you need to, in case of emergency. but the best thing you can really do is just kick on the willpower.