1- Begin by preheating your oven to 400°F (200°C) and lining a baking sheet with foil coated in non-stick spray for easy cleanup. In a large bowl, combine all the ingredients from the list above, adding milk if the mixture feels too dry to get the right consistency.

2- Next, form the mixture into 1½-inch meatballs using a scoop or spoon to keep them uniform, then arrange them on the prepared baking sheet. Bake uncovered for 17-20 minutes, flipping halfway through, until they’re cooked through and no longer pink inside. For a finishing touch, simmer the meatballs in marinara sauce for 10 minutes if you like, then serve them over pasta with grated Parmesan and fresh herbs for a complete meal.

3-First Step: Gather all ingredients and prepare the mise en place by finely chopping onions, garlic, and parsley. Preheat your oven to 400°F (200°C) as mentioned.

4-Second Step: In a large bowl, combine ground beef, breadcrumbs, Parmesan, parsley, egg, garlic, onion, and milk. Mix gently until just combined to avoid tough meatballs.

5-Third Step: Shape the mixture into uniform 1.5-inch meatballs to ensure even cooking. Place them on a baking sheet lined with parchment paper.

6-Fourth Step: Bake the meatballs for 17-20 minutes, until cooked through and browned.

7-Fifth Step: While baking, prepare your preferred sauce or side dishes.

8-Final Step: Remove meatballs from the oven, let them rest for 5 minutes, and serve hot.