Heat the oven to 350 degrees.
Combine the turkey, pork, ginger, oyster sauce and soy sauce in a large bowl and shape into meatballs.
Place the meatballs, in a non-stick baking dish and bake, covered, for 15 minutes.
Heat the oil in a skillet over medium-high heat.
Add the garlic and saute for 30 seconds.
Add the carrots and saute for 4 minutes.
Add the broth and pineapple juice and bring the mixture to a boil.
Lower the heat, add the pineapple juice concentrate and brown sugar, and simmer for 5 minutes.
Mix the cornstarch with the water and add it to the sauce.
Cook until thickened, about 3 minutes.
Uncover the meatballs and add the sauce.
Bake for 10 minutes and serve.