I make a slightly modified version of this:
http://www.epicurious.com/recipes/food/views/-Paella-Couscous-Salad-106747
I don't bother with the shrimp or scallops, add more chorizo, and leave out the olives because my husband hates them. I skip the saffron because I honestly don't think you can taste it in this recipe, and I leave out the garlic in the dressing because there's enough of that flavor with the sausage. It says to serve it at room temperature, but we usually eat it hot after letting the dressing soak in for a few minutes. The recipe could very easily be doubled or tripled--it makes about 6 servings as is.