
Combine the beef, rub, and vegetable oil in a bowl and toss to coat.
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Brown the beef evenly in a large skillet over medium-high heat for 4 to 6 minutes. Do not crowd the beef in the skillet. Transfer the beef to a large bowl and add the onion, parsley, and green onions. Set aside to cool.
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To make the dressing, combine the egg, horseradish, garlic, lemon juice, Worcestershire, and Tabasco in a food processor. Process until smooth. With the motor running, pour the olive oil through the feed tube in a steady stream. The mixture will thicken. Add the salt and pepper and pulse once or twice to blend.
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Add the dressing to the beef mixture and toss to coat thoroughly. Cover and refrigerate for at least 1 hour before serving. Serve chilled.
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Yield: 6 servings