Grill the tomatoes and onions til nicely browned, about 10 min. Remove from grill and coarsely chop. Set aside; Cook the pasta,drain and place in large bowl.
Add basil, parsley, olive oil, garlic, and red pepper flakes, toss well. Add the tomatoes and onions, toss again and pass the parmesan or sprinkle over top.
Servings: