This was delicious. We bought a whole crab and took out the crab meat. We didn't weigh the actual meat. I've looked up crab meat on the internet and it seems this is very low in calories. We added some olive oil and seasoning to our salad. We also added a little butter to our new potatoes (150g each). I used some seafood dressing for the crab.
We guess this meal was around 350 calories. Because it was lower in calories than we would have liked, we had some cheese and biscuits.