This wonderful and flavorful recipe is a personal favorite of mine. I love Italian food and I love spicy food (within reason) so this one has just enough kick (you can adjust it as you like) to make it a blast to eat. Typically, it is made with shrimp but you can use fish or chicken if you prefer. Another typical thing with this dish is the use of a long noodle, like a fettuccini or linguini but again, you can use the pasta of your choice. Ravioli works particularly well with this dish, as does tortellini.
This recipe has a lot of room for modification and play with it to make it how you like. Just remember that cooking the tomato paste with the onion and garlic mixture is the one thing you should not change. This builds the flavor base so don't skip it! Other than that, have fun and I hope you enjoy this wonderful recipe.