Start by preheating your oven to 350 degrees.
Next mix together the ground beef and the sausage with the eggs (you can do this by hand or it's a great job to give to the kids. It's kinda squishy fun for everyone).
Add the Panko bread crumbs along with the onion and combine. Then add in the milk.
Lastly add in your parmesan, garlic, salt, pepper and italian seasoning.
Form the mixture into meatballs just a little bit bigger than a golf ball and place them on a baking tray that you've covered in parchment paper or prepped with olive oil or cooking spray.
Place the pans in the oven and bake for 30 minutes.
Once done you can serve them with spaghetti, use them to make meatball subs or even just eat them plain with some yummy dipping sauce.
I often double this Italian Meatballs Recipe and freeze half as they'll keep beautifully for several months and you can warm them up quickly to put in kids lunches or just for a faster meal on a night when you are really pressed for time (none of us every have those, right?!)