"Mushrooms provide a simple addition to a hearty beef burger that's ready in 35 minutes - perfect slow-cooked dinner. ...MORE+ LESS-..."
INGREDIENTS
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2 tablespoons butter
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1 package (8 oz) sliced fresh mushrooms
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3 tablespoons soy sauce
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3 large garlic cloves, sliced or finely chopped
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1 1/2 lb lean (at least 80%) ground beef
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1/2 teaspoon garlic powder
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1 teaspoon salt
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1/2 teaspoon pepper
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6 slices Swiss cheese
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6 burger buns, split
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2 medium tomatoes, sliced
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1 medium onion, sliced