Preheat oven to 400 degrees F. Line a rimmed baking pan with baking parchment or foil. Lightly oil the parchment and set pan aside.
In a large bowl place ground turkey, bread crumbs, scallions, Thai basil, ginger, Sriracha sauce, minced pepper (if using), finely grated zest from the lime, egg, 1 teaspoon salt, 1/2 teaspoon pepper and 6 tablespoons of the coconut milk. Mix everything together until well combined.
Using wet hands form meatballs using about 1 1/2 to 2 tablespoons of the meat mixture. Place meatball on prepared pan. Continue shaping meatballs until all the mixture is used. Meatballs can be close to each other on the pan, but should not be touching.
Bake meatballs in the preheated 400 degree F oven for 15 to 18 minutes, until meatballs are cooked through and browning lightly.
While meatballs are baking, prepare dipping sauce. In a bowl whisk together the peanut butter, juice from the lime, soy sauce, and brown sugar. Mixture will be thick. Add 3/4 cup coconut milk to mixture and whisk until smooth. There will be left over coconut milk, that can be added to sauce if you prefer a thinner dipping sauce or saved for another recipe. Season dipping sauce with salt and pepper, if needed. Pour into serving bowl and sprinkle with red pepper flakes. For a bit of kick, add a few dashes of sriracha sauce on top of sauce, if desired.
Serve meatballs with dipping sauce and lime wedges as an appetizer, over rice, wrapped in lettuce leaves, or on top of a crisp salad. Enjoy!