1Spread margarine on each slice of bread. Add slices of tomato on each slice of bread. Sprinkle with dried oregano, salt and pepper to your taste.
2Top each slice of bread with a slice of muenster cheese. Put under broiler for just a few minutes, until cheese melts and begins to turn brown. Keep watching since it doesn't take long for it to burn.
3Remove from broiler and enjoy with soup or alone.