Hi Sue - mayo is fine - provided there is little or no sugar in it - I don't know what varieties you get in the UK but in Canada Helman's is a better choice over Miracle Whip. That's why 1000 Island is - it's the sugar in the relish that's in it.

Ranch dressing is another popular choice for salad dressing - it often has a low carb count. Making your own oil and vinegar and herb dressing is a good idea too.

A cup of romain lettuce with cukes an celery chopped over it, served with your prawns is a terrific lunch.

And smoked fish with broccoli sounds great.

You are off to a great start - this low carb dieting REALLY works - provided you are not afraid to eat fat. It's a whole readjustment of thinking. In the first 2 weeks on Atkins for me, I went through 2 whole pounds of butter and lost 9 pounds.