You can pre-make and freeze this turkey chili ahead of time. Brown the meat, add the sugar, seasonings, and minced garlic and cook until mixed well. Set the turkey mixture aside and allow it to cool. Once cooled, place the turkey chili, beans, and diced tomatoes (minus the vegetable broth) into a freezer safe bag and freeze for up to 3 months. To heat, thaw the turkey mixture in the refrigerator overnight. Place the turkey mixture into the slow cooker, add the vegetable broth, and cook on high for 4 hours or on low for 6 hours.