Ingredients
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1 teaspoon extra virgin olive oil
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2 ounces mushrooms, finely chopped
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1/8 teaspoon kosher salt
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4 ounces 90% lean ground sirloin
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1 tablespoon soy sauce
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1/4 teaspoon fresh ground black pepper
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1 slice swiss cheese (1/2 ounce)
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1 tablespoon Dijon mustard
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2 small romaine lettuce leaves
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2 slices tomatoes (1/4 inches thick)
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1 small garlic clove, sliced
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1 scallion, finely chopped
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1 seeded hamburger bun, toasted
Instructions
- Preheat broiler with oven rack about 6 inches from direct heat source.
- Preheat oil in a small skillet set over medium heat. Add mushrooms, garlic and salt and cook until mushrooms have released their liquid and turned golden brown, 5 minutes. Set aside to cool.
- In a medium bowl combine sirloin, scallion, soy sauce, pepper and cooled mushrooms and mix lightly.
- Form into a patty and place on a broiler pan.
- Broil until cooked to desired doneness, 3 minutes on each side for medium, and top with Swiss cheese while hot.
- Spread each side of the bun with mustard, top with lettuce, tomato and the burger.