Heat the olive oil in a small skillet over medium heat. Add in 1/3 of the chopped garlic and cook for 15 seconds. Pour garlic and oil into the bottom of the slow cooker.
In a large bowl, stir together remaining chopped garlic, egg, breadcrumbs, cheese, and parsley. Work ground turkey into the breadcrumb mixture using your hands until just combined. Do not over-mix or meatballs will be tough.
Using a heaping tablespoon of turkey mixture, roll into balls.
Put crushed tomatoes, water, tomato paste, basil, bay leaves, salt substitute, and pepper in the slow cooker. Stir. Gently place meatballs into the slow cooker and cover. Cook for 5 hours on the low setting.
Cook your favorite pasta according to the instructions on the packet. Drain. Top ½ cup pasta with 2 meatballs and some sauce. The meatballs are also tasty on their own, without pasta.