In a large bowl, combine the ground beef, ground pork, breadcrumbs, eggs, Parmesan, parsley, garlic powder, Italian seasoning, salt, and pepper. Gently mix to combine using your hands. Shape into 24 meatballs.
1 pound ground beef, 1 pound ground pork, 1 ½ cups breadcrumbs, 2 large eggs, ½ cup Parmesan or Romano cheese, 4 Tablespoons chopped fresh parsley, 2 Tablespoons dried Italian seasoning, 1 ½ teaspoons kosher salt, 1 teaspoon black pepper, 3 teaspoons garlic powder
Place a wire cooling rack on a baking sheet lined with aluminum foil and spray it with cooking spray. Arrange meatballs on top and bake at 350°F for 15-20 minutes until they reach 160°F when tested with a digital meat thermometer. Add to the sauce.
Make the sauce by sauteing the garlic in a large skillet with the olive oil for about 1 minute. Add crushed tomatoes, Italian seasoning, onion powder, salt, sugar, crushed red pepper flakes, and basil. Stir to combine. Add the partly cooked meatballs if using the second, pan-searing method mentioned above. Simmer for 15-20 minutes, until the sauce thickens slightly.
1 Tablespoon olive oil, 6 garlic cloves, 2 (28-ounce) cans crushed tomatoes, 1 ½ teaspoons dried Italian seasoning, 1 teaspoon onion powder, 1 teaspoon kosher salt, ½ teaspoon sugar, ¼ teaspoon crushed red pepper flakes, ½ cup chopped fresh basil leaves
Slice the baguettes in half and tear out some of the filling, if desired. Brush with olive oil. Season with garlic powder and salt. Toast in a 350°F oven for 5-10 minutes. Top with meatballs, sauce, and provolone cheese. Return the sandwiches to the oven to 2-3 minutes until the cheese has melted.
2 French baguettes, 2 Tablespoons olive oil, 2 teaspoons dried oregano, 1 teaspoon garlic powder, ¼ teaspoon kosher salt, 8 slices provolone cheese
Serve with freshly chopped parsley, oregano, and Parmesan cheese for sprinkling on top.