Swiss Mushroom Melt Delight** 🍔🧀🍞 *Ingredients:* - 1 tbsp Worcestershire sauce - 1 lb ground beef (80/20 blend) - 4 slices Swiss cheese - 1 tbsp butter - 4 slices sourdough or rye bread - 1 cup mushrooms (sliced) - 1 tbsp oil for grilling - 2 tbsp mayo or garlic aioli - 1 tsp salt & black pepper