Ingredients:
1 tbsp Worcestershire sauce
1 lb ground beef (80/20 blend)
4 slices Swiss chees
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
Instructions:
1. **Prepare the mushrooms** – Sauté mushrooms in butter over medium heat until golden brown and tender. Set aside.
2. **Cook the beef patty** – Mix ground beef with salt, pepper, and Worcestershire sauce. Form patties slightly larger than the bread and cook in a skillet until browned on both sides.
3. **Assemble the sandwich** – Spread a thin layer of mayo on the bread. Place Swiss cheese on both sides, then add the beef patty and sautéed mushrooms.
4. **Grill to perfection** – Heat a skillet and grill the sandwich until the bread is golden brown and crispy, flipping carefully.
5. **Serve hot** – Slice in half and enjoy this gooey, cheesy, crispy delight.
