Italian Pesto Burgers

Step 1

Preheat grill or grill pan to medium-high heat. Season patties lightly with salt and pepper. Drizzle with vinegar.

Step 2

Grill patties, covered, 5 minutes per side or until no longer pink. Top with cheese, and grill 1 minute longer or just until cheese is melted.

Step 3

Stir together mayonnaise and pesto. Spread mixture on buns. Serve burgers on buns with tomato and lettuce.