This Greek pasta salad with shrimp, tomatoes, zucchini, peppers, and feta is an ideal outdoor meal. This colorful main-course pasta salad is chock-full of protein, vegetables, and bold flavorings. For fresh flavor and peak texture, toss the salad right before serving—pack the vinaigrette in a jar and the salad ingredients in a gallon-sized resealable plastic bag. Then, when you're ready to serve, drizzle on the vinaigrette, close the bag, and squeeze it all over until the vinaigrette completely coats the salad. Pour into a serving bowl.