Feel free to substitute another good melting cheese for the Parmigiano-Reggiano such as gouda, Monterey jack, pepper jack, Cheddar, Romano, asiago, etc. I typically make these 1/3rd pound burgers, not 1/2

2 pounds ground chuck, 80/20 or 85/15 (lean to fat ratio)
1 cup grated Parmigiano-Reggiano (see note)
2 teaspoons Traeger Beef Rub, or substitute your favorite barbecue rub
1 cup mayonnaise (preferably Hellmann’s)
1/4 cup Traeger Barbecue Sauce
3 tablespoons butter, melted
4 kaiser rolls, split
Lettuce leaves
Sweet onion slices
Tomato slices
Dill pickle chips

2 pounds ground chuck, 80/20 or 85/15 (lean to fat ratio) 1 cup grated Parmigiano-Reggiano (see note) 2 teaspoons Traeger Beef Rub, or substitute your favorite barbecue rub 1 cup mayonnaise (preferably Hellmann’s) 1/4 cup Traeger Barbecue Sauce 3 tablespoons butter, melted 4 kaiser rolls, split

Make sure the meat is well-chilled before handling. Combine the ground beef, cheese, and beef rub in a medium bowl. Wet your hands with cold water, and mix gently. Divide the meat into four equal portions. Rewet your hands with cold water, and form each portion into a patty about 4 inches in diameter and 3/4-inch thick. (Try not to overwork the meat.) Using your thumbs, make a shallow wide depression on the top of each burger.

Combine the mayonnaise and the barbecue sauce in a shallow bowl and refrigerate until serving time.

Brush the cut sides of the kaiser rolls with the melted butter.

When ready to cook, start the Traeger grill on Smoke with the lid open until the fire is established (4 to 5 minutes). Set the temperature to 425 degrees F and preheat, lid closed, for 10 to 15 minutes.

Arrange the burgers directly on the grill grate, depression-side down. Cook for 8 minutes, then flip. Cook for 8 to 10 minutes more, or until an instant-read meat thermometer (put the probe through the side of the burger) registers 160 degrees F.

Meanwhile, lightly toast the buns, cut sides down. Watch carefully as buttered bread can easily burn.

Spread the cut sides of the buns with the mayonnaise sauce. Put a burger on each bun bottom, and top with lettuce, onion, tomato, and pickle. Finish with the top of the bun. Serve immediately.