Been asked to bring a pasta salad with pesto to a mediterranean inspired BBQ this Friday. I want to jazz it up, so I purchased some good quality orecchiette from Puglia, some very mini bocconcini and grape tomatoes. What else can I add in it to make it more substantial? Thinking of more veggies or should it be legumes (chick peas)? Can think of lots but it has to go with pesto.