Check out some South Beach cookbooks from the library. Since it's lower carb there may be ideas you can use to avoid the gluten and potatoes. Can you use Spenda instead of NutriSweet? It tastes better anyway.
I'd say focus on veggies with the right amounts and types of protein and see if that helps.
One thing I do when I'm behaving myself is eat repetitively. So I'll make up a batch of soup, for example, divide it into individual dishes properly portioned, and put it in the fridge, and that's my lunches for the next six days. You could do the same with suppers or breakfasts.
Again when I'm behaving, I set up a giant 'bento box' in the fridge with the entire day's food in it. Then it's easy to keep track of my food. I can't eat anything that day that's not in the box, and when the box is empty, I'm done. Here's a day's worth of WW food:
And here it is, all packed up.
I try to make up my meals in a batch, like I said, but I also try to keep WW chili, the chimis I linked to above, and just a few dishes in the freezer, which can be grabbed in an 'emergency' when I don't want to cook. Having perfectly portioned chili in the freezer has saved me more than once, but most of the time I do cook, so I don't need to keep bushels of things ready. The main thing is that it has to be something that always sounds appealing so I'll want to eat it. If I'm not really interested in my emergency food, it's not going to do me any good, most likely.