Oil a 1 1/2-quart loaf pan and line the bottom with parchment paper or use a meatloaf pan.
In a small bowl, combine 2 tablespoons Dijon and 1 tablespoon of sambal and set aside.
In a large nonreactive bowl, combine the ground turkey and pork. Add the onions, garlic, the remaining 1/4 cup of sambal, soy sauce, eggs, Worcestershire sauce and panko. Season with salt and pepper and, using your hand, mix well. Fill the pan with the mixture, and bake until cooked through, about 1hour and 15 minutes.
Unmold, slice, and serve with the sambal mixture on the side as a condiment.