Prepare sauce: Heat oil in saute pan; add garlic; saute for 30 seconds; add onions and saute for 1 minute; add peppers and continue to saute for another minute. Deglaze with chicken stock and reduce to half. Add V-8 juice and cayenne pepper; bring to boil; simmer 10 minutes.
Thicken to consistency with cornstarch; season to taste with salt and pepper.
Add cooked pasta to sauce and heat through until hot.
Arrange on serving dish and top with chicken breast. Sprinkle with Parmesan and parsley.