Blend the tomato paste with the seasoned salt, garlic powder, and oregano.
Spread about 1 1/2 table spoons on each toasted muffin half.
Sprinkle cheese over the tomato spread and arrange about 3 sardines on each muffin half.
Place two green pepper strips crossing the sardines and place a pimiento strip between them.
Brush top with some of the reserved oil.
Broil 3 to 4 inches from source of heat about 3 minutes, or until cheese is melted