1. Boil pasta until al dente, about 12 minutes. Rinse under cold water. Divide pasta in half and place half in each ziplock bag. Add about 30 drops of red food coloring to one bag and 30 drops of blue to the other. Mix until pasta is colored. Lay pasta out on a baking sheet with paper towels and let dry about 15 minutes. This will help keep the colors from mixing together. 2. Place pasta in a large serving bowl. Add in the remaining ingredients. Stir in salad dressing and mix well until combined. Cover and refrigerate at least an hour before serving to let flavors marry together.