Pre-heat oven to *425.
In a large mixing bowl, combine beef, sausage, eggs, breadcrumbs, cheese, garlic, salt and pepper.
Mix until well combined.
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 ½ way through.
You just want to make sure the outsides are browned. They will finish cooking in slow cooker. Go ahead and set that on low.
When meatballs are browned, place them in your slow cooker and cover completely with sauce. Cover and let those babies cook for 4 hours.
Slice soft deli rolls, load them up with a few meatballs each and enough sauce to make your mouth and tummy happy.
Top with sliced mozzarella cheese.