Trying to get the 1/3 superfree inside myself was a problem at first and during winter salads don't seem that appealing. If you like vegetables you won't have a problem. I started finding that if I had fruit and a yoghut for my breakfast and a salad for my dinner I could have whatever free foods I wanted for my tea and I would get a loss as I was getting more than enough superfree during the day.
If you don't think a salad will fill you up, add pasta or cous cous to 'pad' it out a bit. They will fill you up and cause they are free it isn't a problem. The other good thing about a salad is you can put almost anything in them, chicken, ham, cottage cheese, tinned/ fresh tuna/ salmon and more besides.