I agree with Jilly. I've worked in a restaurant before so I can give you all a behind the scenes perspective. For example, if someone orders a low fat dish prepared with low fat cheese and the kitchen just ran out of low fat cheese ~ guess what? You will get your food with whatever cheese they haven't ran out of (and it will be fatty cheese). And they same goes with sauces, dressings, and anything else you can think of. AND, all chefs are not the same. Some WILL measure and some WILL NOT bother. Some will "eye ball" it and chefs aren't required to have good eye sight
And don't order "grilled" veggies, because they might "grill" them next to steaks and burgers. So your veggies more than likely have grease on them from that. Order steamed veggies.
And if you sitting there and you are raving about how good your low fat/calorie dish is, then you are probably not eating a low fat dish. We all know what plain, steamed, grilled food tastes like. And restaurants don't have a magic calorie free potion to make it taste better.
I don't even trust getting diet pop from a fountain. I'm always scared that they might have inadvertently switched the syrups.
See what dieting has done to me? I'm one paranoid fat chick!