I think that if its a lifestyle change then you should be able to splurge a little bit and have what you want. But maybe these suggestions would help us:
Get a childs portion
Share some with a spouse or friends (so you don't eat all of them)
Bank calories for that day like eating more salads and save extra calories for your night out
Exercise more the next day and be extra careful the rest of the week
Even WW allows extra points for you to go out and have a good time. if you limit yourself too much you will end up bingiing
