A 1 cup serving of Costco Lobster Bisque contains 380 calories per serving.
380 calories is not that many calories so it's okay to eat some lobster bisque even if you're trying to watch your weight or when you're trying to lose weight.
I still lost 100 lbs of weight over a years time with exercise, dieting and fasting etc and ate a bowl of lobster bisque at least twice per week.
So as long as you're still burning off those calories after consuming them you can still eat lobster bisque and lose weight.
Lobster bisque isn't the healthiest food but it's not bad for you either and is very tasty.