Start by setting up your crockpot for success! Line the bottom with parchment paper or lightly spray it with non-stick cooking spray.

In a large mixing bowl, combine ground beef, breadcrumbs, eggs, milk, chopped onion, minced garlic, ketchup, Worcestershire sauce, salt, black pepper, and dried parsley. Gently mix until just combined.

Carefully shape the meat mixture into a loaf shape using your hands. Place it in the center of the prepared crockpot.

Spread a generous layer of ketchup over the top of the shaped meatloaf.

Cover the crockpot and cook on the low setting for about 6 hours, or on high for 3 to 4 hours.

Once cooked, carefully remove the lid and let the meatloaf rest for about 10 minutes before slicing and serving.