"Get this all-star, easy-to-follow Steak and Horseradish Pressed Sandwich recipe from Food Network Kitchen..."
INGREDIENTS
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1 flank steak (about 1 1/2 pounds)
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2 teaspoons Worcestershire sauce
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2 tablespoons extra-virgin olive oil
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Kosher salt and freshly ground black pepper
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1/2 cup mayonnaise
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2 tablespoons prepared horseradish, drained
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2 tablespoons whole-grain mustard
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1 medium to large red onion, sliced into 1/4 inch rounds
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1 large loaf rye bread (unsliced)
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4 cups baby arugula
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1 large tomato, thinly sliced