Step 1

For the Sauce: In a 4 quart slow cooker, add the cans of tomato, dried oregano, salt, pepper and garlic cloves. Stir to combine and set aside.

Step 2

For the meatballs: In a large bowl, combine the breadcrumbs, Parmesan, salt, pepper, egg, and garlic. Using a wooden spoon, stir to blend. Add the ground turkey and sausage meat. Using your fingers, gently mix all the ingredients until thoroughly combined. Using a 1-ounce cookie scoop or a small ice cream scoop, form the meat mixture into 1 1/2-inch balls (24 to 26 meatballs).

Step 3

Add the meatballs to the slow cooker with the tomato mixture. If you need to make a second layer of meatballs, gently press on the first layer to submerge and add the next layer on top. It's okay if they aren't fully covered in sauce.

Step 4

Nestle the parmesan rind into the sauce. Cover and cook for 5 hours on high. After the 5 hours, remove the cover and cook an additional 30 minutes on high to reduce the sauce slightly. Serve with freshly grated parmesan.