Sourdough Cheeseburgers For 2

• 3 tablespoons mayonnaise
• 1 tablespoon ketchup
• 1 tablespoon sweet pickle relish
• 1/2 lb ground beef
• salt and pepper
• 1 small onion, sliced and separated into rings
• 1/2 cup button mushroom, sliced
• 4 tablespoons butter, divided and softened
• 2 slices swiss cheese

1. Combine mayo, ketchup and relish in a small bowl.
2. Cover and refrigerate.
3. Shape beef into 2 patties, season with salt and pepper, and pan fry in a large skillet over medium heat for 4-5 minutes on each side (160 on meat thermometer).
4. Remove and keep warm.
5. In the same skillet, saute onion and mushrooms in 1 Tablespoon butter.
6. Saute until tender.
7. Remove and keep warm.
8. Using 2 Tablespoons of the butter, butter one side of each slice of bread.
9. Melt remaining butter in skillet; low heat.
10. Place bread, buttered side up in skillet and cook until golden brown; 2-3 minutes.
11. Turn and top the bread with the Swiss cheese.
12. Cook 2 minutes longer or until cheese is melted.
13. To serve, place toast, cheese side up on plate.
14. Top with a burger, relish mix, onion/mushroom mix and remaining toast.
15. Serve with dill pickle spears and chips.

mayonnaise, ketchup, sweet pickle, ground beef, salt, onion, button mushroom, butter, swiss cheese

Taken from www.food.com/recipe/sourdough-cheeseburgers-for-2-86490 (may not work)