1. Preheat the oven to 350°F (175°C).

2. In a large bowl, combine ground beef, breadcrumbs, eggs, onions, garlic, ketchup, mustard, Worcestershire sauce, salt, and pepper.

3. Mix until well combined and shape into a loaf on a baking sheet.

4. Bake in the preheated oven for 1 hour or until cooked through.

5. Let it rest for 10 minutes before slicing and serving.