Red Hot Fusilli

1 Tbsp olive oil
2 cloves garlic, minced
1/4 C fresh parsley, minced
4 C ripe tomatoes, chopped
1 Tbsp fresh basil, chopped (or 1 tsp dried)
1 Tbsp oregano leaves, crushed (or 1 tsp dried)
1/4 tsp salt
to taste ground red pepper or cayenne
8 oz uncooked fusilli pasta
(4 C cooked)
1/2 lb (optional) cooked chicken breasts, diced into 1/2-inch pieces
(3/4 lb if raw)