Instructions
Step 1
In a medium bowl, stir together the cheddar, mayonnaise, onion, pimentos, and Worcestershire sauce. Season to taste with salt and black pepper, then set aside.
Step 2
Season the beef patties to taste with salt and black pepper. Heat a charcoal or gas grill to medium-high. (Alternatively, to a large cast-iron skillet over medium-high heat, add 1 tablespoon of vegetable oil.) Grill the patties, flipping once, until cooked to desired doneness, about 10 minutes for medium-rare.
Step 3
Spread 2 tablespoons of pimento cheese over each patty, cover, and allow to melt. Arrange the bottom buns on plates, layer with the patties, tomatoes, lettuce, and top buns, and serve immediately.