Patty Melt

2
Servings

Ingredients

  • 2 Tablespoon butter, softened
  • 4 slices rye bread
  • 1 1/2 Pound fresh ground round (divided and shaped into 2 oval burgers)
  • 1 Tablespoon olive oil
  • 1 small red onion, peeled and sliced into rings
  • 2 to 3 slices Swiss cheese