Step 1

Heat the olive oil over medium heat. Add the ground beef, garlic powder, onion powder, and Italian seasoning. Cook the beef, breaking it up with a spatula, until browned and cooked through.

Step 2

Add the Worcestershire sauce, diced tomatoes, marinara sauce, and parsley and stir to combine. Add the penne and the vegetable stock. Increase the heat to high and bring to a simmer. Lower the heat to medium, cover, and cook for 10-15 minutes or until the penne is tender, stirring frequently. While the pasta is cooking, preheat the oven to broil.

Step 3

Uncover the pan and sprinkle the parmesan over the top. Place the mozzarella slices on top. Transfer the pan to the oven and broil until the cheese is melted.