Roast Beef Tortilla Roll-ups

2 tablespoons Caesar ranch dressing
2 flour tortillas (7 to 8-inch)
2 large leaf lettuce leaves, torn to fit tortilla
4 oz. thinly sliced deli roast beef
4 slices (3/4 oz. each) Swiss cheese
2 teaspoons diced red onion (optional)
Pickle wedges, if desired

Spread 1 tablespoon dressing on each tortilla, covering entire surface. Top each with lettuce leaf and half of beef, cheese and onion. Roll up each tortilla tightly.
To serve, cut roll-ups into 1-inch slices. Insert cocktail toothpick into each to secure.

Roast Beef Tortilla Roll-ups