"The best kosher option for us when traveling to Scotland is to order our food in advance from Chabad, then have it frozen and ready for pick up in Glasgow. On this trip, we paid £300 for two weeks of food, enough for four adults. We got soups, kugels, chicken, beef, strudel, vegetables, rice, and lasagna. To make it work, we bought a 220V crockpot and a power converter for our electric hot plate. Of course, we brought our own plastic plates, utensils, pot, a pan, and a thermos too (good for soups on day trips away from our Airbnb Vrbo). Essentially, when we travel internationally, we have one extra suitcase dedicated to food. While you may think that's an excessive shlep, it turns out to be amazingly economical and a great time saver to eat when and where we want."