Pesto-Pepper Jack Sliders

Directions:

1. Combine ground beef and pesto in medium bowl; mix lightly, but thoroughly. Lightly shape into twelve 1/2-inch thick patties.
2. Preheat grill to medium.
3. Grill 8 to 10 minutes to medium doneness (160°F), turning occasionally. During last 2 minutes of cooking, spoon 1 heaping tablespoon diced tomato mixture on each patty; top with one quartered cheese slice and cover. Repeat with remaining patties.
4. Place burgers on bottoms of rolls; close sandwiches.