Cook pasta according to package instructions.
In a pan, heat olive oil and sauté garlic and onions until fragrant.
Add shrimp, scallops, and clams, and cook until seafood is almost done.
Pour in white wine and simmer for a few minutes.
Add cooked pasta to the pan and toss with seafood mixture.
Season with salt, pepper, and red pepper flakes to taste.
Serve hot and garnish with chopped parsley.
Enjoy your Quick American Seafood Pasta!