Preheat oven to 375°F. Grease a 12-cup muffin tin with cooking spray.
In a large bowl, combine the ground turkey, red bell pepper, green onions, ginger, cilantro, black pepper, eggs, panko bread crumbs, soy sauce, and pineapple bits. Mix until all ingredients are evenly distributed.
Divide the mixture evenly among the 12 muffin cups. Press down lightly to form a compact shape.
Bake in preheated oven for 25-30 minutes, or until the internal temperature of the meatloaf reaches 165°F.
While the meatloaf is baking, prepare the teriyaki sauce. In a small saucepan, combine the soy sauce, chicken broth, maple syrup, sesame oil, rice wine vinegar, ginger, Sriracha or hot chili sauce, and cornstarch. Whisk together until all ingredients are combined.
Bring the sauce to a simmer over medium heat and cook for 3-4 minutes, stirring occasionally, until the sauce thickens.
When the meatloaf muffins are done baking, brush each one with the teriyaki sauce.
Serve the teriyaki turkey meatloaf muffins warm. Enjoy!