Preheat oven to 400°F. Place bread slices on a baking sheet and lightly brush both sides with olive oil. Bake for 8 minutes or until lightly brown. Remove from oven and allow to cool. Pre-heat oven broiler on high. Thread marinated beef tournedos onto the skewers, dividing evenly. Broil skewers about 4" from the heat, until the meat is cooked to desired doneness, about 4 to 5 minutes for medium-rare. Remove from broiler and set aside. Prepare the lettuce in a large bowl and toss with the creamy parmesan dressing to taste. Divide among 6 large salad plates and top with one of steak skewer. Garnish with toasted bread slices and shaved parmesan. Serve.