01 -
In a large mixing bowl, combine breadcrumbs and milk. Let soak for 5 minutes until fully absorbed and paste-like.
02 -
Add ground beef, egg, onion, garlic powder, salt, and pepper to the soaked breadcrumbs. Gently mix by hand until just combined.
03 -
Roll mixture into 1-inch balls and arrange on a lined baking sheet. Bake at 375°F for 15–20 minutes until internal temperature reaches 165°F.
04 -
Boil egg noodles in salted water according to package directions until al dente. Drain thoroughly without rinsing.
05 -
In a skillet over medium heat, melt butter. Whisk in flour and cook for 1 minute to eliminate raw flour taste.
06 -
Gradually whisk in beef broth until smooth and thickened. Remove from heat and stir in sour cream and Worcestershire sauce until fully blended.
07 -
Combine noodles, meatballs, and sauce in a large bowl. Transfer to a greased 9x13-inch baking dish and top with mozzarella cheese.
08 -
Bake at 375°F for 20 minutes or until cheese is golden and bubbling. Let rest briefly before serving.