These Italian-inspired burgers are packed with flavor and perfect for a casual dinner or cookout.
Combine the ground beef, onion, parmesan cheese, parsley, egg, pepper, and fennel seed in a mixing bowl.
Mix gently to avoid overworking the meat, which can make the patties tough.
Shape the mixture into 4 equal-sized patties.
Make a small indentation in the center of each patty to help them cook evenly.
Preheat the grill to medium-high heat.
Ensure the grill is clean and oiled to prevent sticking.
Grill the patties for 7-8 minutes on each side, or until cooked to your desired doneness.
Avoid pressing down on the patties while grilling to retain their juices.
Place a slice of provolone cheese on each patty and grill for an additional minute until melted.
Cover the grill briefly to help the cheese melt faster.
Toast the burger buns on the grill, cut sides down, for about a minute.
Keep an eye on the buns to prevent burning.
Assemble the burgers by placing each patty on a bun and topping with a basil leaf.
Serve immediately for the best flavor and texture.