Cook the spaghetti in salted water. Spread a thin layer of olive oil on a non-stick pan. Sauté the spring onions and garlic for 2 - 3 minutes, add the tomatoes and simmer for 5 minutes. Rinse the seafood and add drained to the tomatoes. Let simmer for 2 - 3 minutes.
Spread the sauce over the pasta and stir. Season with pepper and salt. Sprinkle with the parsley and serve.
Tip: For extra flavor, you can add a few rings of fresh red chilli to the spring onions when frying them.