In a large mixing bowl, combine beef, sausage, eggs, breadcrumbs, cheese, garlic, salt and pepper.
2 lb ground beef, 12 oz Italian sausage, 4 egg, 1 ¼ cup Italian bread crumbs, ¼ cup Parmesan cheese, ½ tsp garlic, 2 tsp salt, 2 tsp pepper
Now, I take off my rings and really get in there good and mix with my hands. It's how grandma did it, so it's how I do it. Don't worry, there's plenty of soap and water to wash up!
This makes 45-50 meatballs so you'll want to lightly spray 2 baking sheets. To form meatballs you can either eyeball and roll the size of golf balls or use a small ice cream scoop. Either way, you want them all to be the same size.
Drop on baking sheets about 1 inch apart.
Place on top rack of oven.
Bake for 10 minutes, flipping each over 1/2 way through. You just want to make sure the outsides are browned. They will finish cooking in slow cooker.
Go ahead and set the slow cooker on low. When meatballs are browned, place them in your slow cooker and cover completely with sauce.