- In large skillet, cook ground beef until no longer pink; drain. Stir in seasoning mix according to package directions. Arrange tomatoes, lettuce and cheese in separate serving bowls. Heat tacos according to package directions.
- To Serve: Spoon 2-3 tablespoons meat mixture into each shell. Spoon tomatoes, lettuce and cheese over meat mixture. Add taco sauce and sour cream, if desired.