For the pimento cheese topping:
4 oz. shredded sharp cheddar cheese
3 tbsp. mayonnaise
1 tbsp. diced pimentos
1 tbsp. grated onion
½ tsp. Worcestershire sauce
Salt and pepper, to taste
For the burgers:
1½ lbs. ground sirloin or ground beef
3 tbsp. yellow onion, finely chopped
2 cloves minced garlic
1½ tsp. salt
¾ tsp. freshly ground pepper
1 or 2 dashes of Worcestershire sauce
Burger buns, split and toasted
Heat a grill to medium-high. To make the pimento cheese, combine the cheese, mayonnaise, pimentos, onion, and Worcestershire in a bowl; mix to blend. Season to taste with salt and pepper. Set aside.
To make the burgers, combine the ground beef, onion, garlic, salt, pepper, and Worcestershire sauce in a large bowl. Knead together gently until evenly combined, taking care not to overwork the mixture. Form into four equal patties, indenting slightly in the center. Place the burger patties on the preheated grill and cover. Cook, turning once, until done to your liking. A couple of minutes before the burgers are finished cooking, add 2 tablespoons of the pimento cheese mixture and finish cooking so that the cheese melts on top. Remove from the grill and let rest about 5 minutes.
Serve on toasted burger buns and top with lettuce and tomato. Enjoy!