Put oil in a pan with garlic and minced parsley. Add seafood (mussles and clams precleaned) and then add the white wine. Cover till they will be opened. After this turn off the fire.
Put in another pan on the medium heat oil and onion preminced. Add squids (julienned) and prawns (without shell) later add tomatos cut in 2 parts. Cook shortly and add mussles & clams. Add Oregano, Galic, Parsley. Salt.
In a pot, cook the pasta following this rule: 1000-100-10. 1000 water, 100 pasta, 10 salt! Strain it and dress with the sauce. Finish this dish with a circle of oil.