This salad-as-a-meal was a big winner in our house - Chuck even said he liked it better than any other salad entrees I've made! It was a nice, simple recipe, and the roasted tomatoes really added a delicate sweetness to the salad. Don't be afraid of the cannellini beans either (MOM!), they taste delicious mixed with the dressing.
The amounts in the link to the recipe will definitely serve 4 people - but if you keep all the ingredients separate (esspecially the dressing), you can definitely make a lunch out of the leftovers the next day. And as you can see above I added some large chunks of fresh mozzarella to the mix. Enjoy!