1/2medium white onion, finely chopped (about ½ cup)
2garlic cloves, minced (about 2 teaspoons)
1/3cupsun-dried tomatoes in oil, drained and chopped
2ouncesRomano cheese, shredded (about ½ cup)
1teaspoonkosher salt
1/2teaspoonfresh ground black pepper
6ouncesfresh mozzarella cheese, sliced (6 slices)
6ciabatta buns, split
2tablespoonsunsalted butter, softened
1/2cupbasil pesto
8ouncesroasted red peppers, sliced (about 24 to 32 strips)
Instructions
PREHEAT GRILL: Preheat a grill to medium-high heat, about 400°F.
MIX BURGERS: In a large bowl combine 2 pounds 85% lean ground beef, 1/2 medium white onion, finely chopped , 2 garlic cloves, minced , 1/3 cup sun-dried tomatoes in oil, drained and chopped, 2 ounces Romano cheese, shredded , 1 teaspoon kosher salt, and 1/2 teaspoon fresh ground black pepper. Mix gently just until combined.
FORM PATTIES: Divide the mixture into 6 equal portions and shape into patties slightly larger than the ciabatta buns. Press a shallow indentation in the center of each patty.
GRILL BURGERS: Place patties on the grill and cook for 3 to 4 minutes until a browned crust forms. Flip and cook another 3 to 4 minutes until the internal temperature reaches about 160°F.
ADD CHEESE: During the last minute of cooking, top each burger with 1 slice of the 6 ounces fresh mozzarella cheese, sliced and close the grill lid until melted.
TOAST BUNS: Spread the cut sides of the 6 ciabatta buns, split with 2 tablespoons unsalted butter, softened. Place buns cut side down on the grill and toast for about 1 minute until golden.
ASSEMBLE BURGERS: Spread about 2 to 3 tablespoons of the 1/2 cup basil pesto on the bottom half of each bun. Place the cheeseburger on top and add 4 to 5 of the 8 ounces roasted red peppers, sliced .
SERVE: Place the top buns on and serve immediately.
Notes
Make-Ahead: Patties can be formed up to 1 day ahead and stored covered in the refrigerator.Storage: Store leftover cooked burgers in an airtight container in the refrigerator for up to 3 days.Reheating: Reheat burgers in a skillet over medium-low heat or in a 325°F oven for about 10 minutes until warmed through.Freezing: Raw patties can be frozen for up to 3 months. Thaw overnight in the refrigerator before cooking. Ingredient Tip: 85 percent lean ground beef gives the best balance of flavor and juiciness for burgers, especially when mixed with add-ins like cheese and vegetables.Stovetop Method: Heat a large skillet or cast iron pan over medium-high heat. Add the burger patties and cook for 4 to 5 minutes until a browned crust forms. Flip and cook another 3 to 4 minutes until the internal temperature reaches about 160°F. Add the mozzarella cheese during the last minute and cover the pan briefly to melt. Toast the buttered buns in the same skillet for 30 to 60 seconds until golden.