This pesto pasta salad is a great dish for a summer picnic or potluck. Cook your favorite pasta according to the package instructions, then toss it with homemade pesto sauce made in a food processor. Add cherry tomatoes, sliced olives, and fresh mozzarella for a colorful and flavorful salad. You can also add grilled chicken or shrimp for a protein boost. Chill the salad in the fridge for at least an hour before serving.