Thai Beef Wok 'n Roll-Ups

Ingredients

• 1 beef Flank Steak (about 1 pound)
• 3 tablespoons teriyaki marinade and sauce
• 1 small red bell pepper, cut into thin strips
• 1/4 cup reduced-fat peanut butter
• 1/4 cup chopped green onions
• 1/4 to 1/2 teaspoon ground black pepper
• Salt
• 8 medium to large green or red leaf lettuce leaves