Today is only fast day #4 for me, but I have found in the last two times that I do best when I save all my calories for supper with the family. I can ignore the hunger well enough - if it gets insistent, I drink water/tea or go *do* something, walk, laundry, work if I'm at work, etc. - but for my body, once I start eating, I have a difficult time stopping.
For the same reason, on my fast day, I make sure that my main meal starts with a HUGE lettuce salad. I can eat six cups of romaine/spinach salad for less than 50 calories before dressings! I put it in a tupperware type plastic bowl with a lid so that a small amount of dressing and seasoning is adequate - I put the dressing on, put the lid on, and shake the bowl like crazy to distribute the topping. My whole salad ends up being around 150 calories for an enormous amount of food. I usually add carrots, onion and tomato - measuring calories with myfitnesspal - to stay within that 150 calories. Then I eat whatever else the family is having, sticking with mainly the protein portion of the meal in a small portion.
Tonight, family is having tacos, I'm having taco salad.
I won't use any sort of wrap/shell, but my salad will be that much larger with the taco meat and plain greek yogurt (instead of sour cream) and taco sauce instead of dressing.