Place the frozen meatballs into a lightly greased slow cooker.
Whisk together the soy sauce, pineapple juice, beef broth, brown sugar, honey, garlic, ground ginger, red pepper flakes, sesame oil, and cornstarch. Pour the sauce over the meatballs.
Cover and cook on low for 4 to 6 hours, stirring occasionally. Turn to high for the last hour if needed to help the sauce thicken.
Garnish with scallions and sesame seeds and enjoy!
Notes
Nutritional information is an estimate and provided to you as a courtesy. You should calculate the nutritional information with the actual ingredients used in your recipe using your preferred nutrition calculator.Serving size is 6 meatballs. These meatballs can be eaten as an appetizer or served over a bed of rice as a main dish. Store leftovers in an airtight food storage container in the fridge for up to 4 days. Reheat gently in the microwave or on the stovetop with a splash of water or broth.