Mix ground beef, garlic salt, 3/4 teaspoon of the Italian seasoning and pepper in large bowl. Shape into 16 (1 1/2-inch) meatballs.
Brown meatballs in large skillet on medium heat 10 minutes or until cooked through. Add Seasoning Mix, tomato paste, water and remaining 1/4 teaspoon Italian seasoning; stir until smooth. Simmer 5 minutes.
Place meatballs in rolls. Spoon sauce over top. Sprinkle with cheese.