Brown the ground beef in a skillet over medium heat until fully cooked. Drain any excess grease. Season the beef with salt, pepper, garlic powder, onion powder, and Italian seasoning.
Stir in the jarred tomato sauce and let everything simmer for a few minutes until heated through.
Split the king size English muffins in half and place them cut side up on a baking sheet. Spoon the beef mixture evenly over each English muffin half.
Top generously with shredded mozzarella cheese. Bake for about 10-15 minutes, or until the cheese is melted, bubbly, and lightly golden. Garnish with parsley (optional) and enjoy!