This recipe uses leftovers from the main dish recipe: Rustic Pork Tenderloin.
Makes 2 servings.
Work lunch suggestion: Prepare step 1; divide between 2 small storage containers. Place buns, lettuce and tomatoes in separate small bags. Refrigerate all up to 2 days. Continue with step 2.
Tip: Save any remaining pesto mayonnaise for another use. Refrigerate up to 1 week.