for the salad
In a bowl combine the tomatoes, mozzarella and pesto. Mix well.
Place on individual plates and top with chopped arugula, basil and pancetta.
for the arugula basil pesto
Place all ingredients, except olive oil into a food processor. Puree the ingredients until smooth.
While the pesto is being pureed, pour the olive oil into the mixture in a steady stream.
Remove from the food processor and refrigerate in an airtight container.