Creating delectable Salisbury Steak Meatballs is simpler than you might expect. Follow these steps for a successful meal:

1. Preheat Your Oven: Preheat the oven to 400°F (200°C) and line a baking sheet with parchment paper.
2. Make the Meatball Mixture: In a large bowl, combine ground beef, breadcrumbs, egg, Worcestershire sauce, chopped onion, minced garlic, salt, pepper, onion powder, and garlic powder. Mix until just combined, being careful not to overmix.
3. Form the Meatballs: Shape the mixture into meatballs about 1-2 inches in diameter and place them on the prepared baking sheet.
4. Bake the Meatballs: Bake in the preheated oven for 20-25 minutes or until they are cooked through and browned on the outside.
5. Prepare the Gravy: While the meatballs are baking, heat olive oil in a skillet over medium heat. Add 2 cups of beef broth and bring to a simmer.
6. Thicken the Gravy: In a small bowl, mix the cornstarch with a little cold water to create a slurry. Add this to the skillet and stir until the gravy thickens.
7. Combine: Once the meatballs are done, remove them from the oven and carefully transfer them to the skillet with the gravy. Let them simmer for a few minutes to soak up the flavors.
8. Serve: Remove from heat and garnish with chopped parsley.

By following these straightforward steps, you can create tender Salisbury Steak Meatballs that are bursting with flavor.