Preheat oven to 450 degrees.
Butter a baking dish large enough for the salmon fillet. Extract all bones from the fillet. Rinse under cold water and pat dry. Place the salmon fillet skin side down in the baking dish. Season with the white wine Worcestershire sauce, onion salt, fish seasoning, and oregano.
Bake the salmon for 10 minutes.
Brown under a hot broiler for 2 to 3 minutes. Sprinkle capers over the fish.
Cook the angel hair pasta in salted boiling water according to the directions on the package.
Drain the pasta, and toss in butter.
PRESENTATION
Divide the salmon fillet into equal portions. Arrange each portion on a hot plate. Top with capers and cooking liquid.
Garnish with the steaming pasta. Serve with the white butter sauce.