1. In a large mixing bowl, combine the ground beef, grated Parmesan cheese, breadcrumbs, and milk.
2. Add in the finely chopped onion, minced garlic, beaten egg, fresh parsley, dried oregano, dried basil, salt, and black pepper. Mix well until all ingredients are thoroughly incorporated.
3. Shape the mixture into a loaf and place it in a moderately-sized slow cooker.
4. If desired, spread a thin layer of marinara sauce over the top of the meatloaf for added flavor and moisture.
5. Cover and cook on low heat for 6-8 hours or on high heat for 3-4 hours, ensuring the meatloaf is cooked through and reaches an internal temperature of 160°F.
6. Once done, carefully remove the meatloaf from the slow cooker and let it rest for a few minutes before slicing.

7. Serve warm, garnished with additional fresh parsley if desired.
Variations & Tips
For a lighter version, try using ground turkey or chicken instead of beef. You can also experiment with adding different herbs like thyme or rosemary for a unique twist. To make it gluten-free, substitute the breadcrumbs with gluten-free breadcrumbs or ground oats. If you prefer a spicier kick, add a pinch of red pepper flakes to the mixture. Lastly, incorporating finely chopped vegetables like bell peppers or carrots can add a touch of sweetness and extra nutrients to the meatloaf.

1. In a large mixing bowl, combine the ground beef, grated Parmesan cheese, breadcrumbs, and milk.
2. Add in the finely chopped onion, minced garlic, beaten egg, fresh parsley, dried oregano, dried basil, salt, and black pepper. Mix well until all ingredients are thoroughly incorporated.
3. Shape the mixture into a loaf and place it in a moderately-sized slow cooker.
4. If desired, spread a thin layer of marinara sauce over the top of the meatloaf for added flavor and moisture.
5. Cover and cook on low heat for 6-8 hours or on high heat for 3-4 hours, ensuring the meatloaf is cooked through and reaches an internal temperature of 160°F.
6. Once done, carefully remove the meatloaf from the slow cooker and let it rest for a few minutes before slicing.

7. Serve warm, garnished with additional fresh parsley if desired.
Variations & Tips
For a lighter version, try using ground turkey or chicken instead of beef. You can also experiment with adding different herbs like thyme or rosemary for a unique twist. To make it gluten-free, substitute the breadcrumbs with gluten-free breadcrumbs or ground oats. If you prefer a spicier kick, add a pinch of red pepper flakes to the mixture. Lastly, incorporating finely chopped vegetables like bell peppers or carrots can add a touch of sweetness and extra nutrients to the meatloaf.