Cook the pasta in a large pot of boiling, salted water according to package directions. Drain and coat with the Caesar dressing while still warm.
Add the rest of the ingredients, except for the pine nuts and extra basil. Toss well to combine. Add additional salt and pepper to taste, if needed.
Refrigerate until ready to serve (4-8 hours). If the pasta salad seems dry after refrigerating, add a little more Caesar dressing and stir to combine. Before serving, top with pine nuts and fresh basil, if desired.
