01 -
Preheat oven to 375°F. Lightly grease a 9x13 inch baking dish.
02 -
In a bowl, combine breadcrumbs and milk. Let it sit for 5 minutes.
03 -
Add ground beef, egg, onion, garlic powder, salt, and pepper to the breadcrumb mixture. Mix until well combined.
04 -
Form the mixture into small meatballs, about 1 inch in size. Place them on a baking sheet lined with foil or parchment paper. Bake the meatballs for 15-20 minutes or until fully cooked.
05 -
While the meatballs bake, cook the egg noodles according to their package directions. Drain and set aside.
06 -
In a large skillet, melt butter over medium heat. Stir in the flour and cook for 1 minute. Slowly whisk in beef broth. Bring to a simmer and cook until thickened, about 3-5 minutes. Remove from heat and stir in sour cream and Worcestershire sauce until smooth.
07 -
In a large bowl, gently stir together the cooked noodles, meatballs, and sauce until evenly coated. Pour the mixture into the prepared baking dish.
08 -
Top the mixture with shredded mozzarella cheese. Bake for 20 minutes or until the cheese is melted and bubbly. Garnish with parsley if desired.