Prepare the Meatloaf:

• Preheat the Traeger grill to 375°F (190°C).

• In a large bowl, combine ground beef, Italian sausage, eggs, breadcrumbs, Italian seasoning, and salt. Mix until fully incorporated.

• Divide the meat mixture in half. Shape one half into a loaf on a sheet of wax paper or plastic wrap.

Stuff the Meatloaf:

• Place the pepperoni, mozzarella, and basil leaves in the center of the meatloaf.

• Carefully fold the second half of the meat mixture over the filling, sealing the edges to fully encase the stuffing.

Smoke the Meatloaf:

• Place the stuffed meatloaf on the preheated Traeger grill. Smoke for about 1.5 to 2 hours, or until the internal temperature reaches 160°F (71°C).

Make the Sauce:

• While the meatloaf is cooking, heat olive oil in a pan over medium heat. Add minced garlic and sauté until fragrant, about 1 minute.

• Add the San Marzano tomatoes, salt, oregano, and optional sugar. Simmer for 15-20 minutes, mashing the tomatoes as they cook to form a sauce.

Serve:

• Once the meatloaf reaches the desired temperature, remove it from the grill and let it rest for 10 minutes before slicing.

• Serve the meatloaf slices with the prepared tomato sauce spooned over the top.