Preheat the oven to 450°F (230°C) and line a baking sheet with parchment paper.
In a mixing bowl combine the ground turkey or chicken, finely chopped green onions, minced garlic, Worcestershire sauce, and a pinch each of kosher salt and pepper; mix gently until just combined.
Coat your hands with a little oil and roll the mixture into tablespoon-size meatballs (about 15–20). Place them on the prepared baking sheet, leaving space between each.
Bake the meatballs for about 15 minutes, or until crisp on the outside and cooked through.
While the meatballs bake, heat the sesame oil in a large skillet over medium heat. Add the finely chopped shallots, sliced bell peppers, and grated ginger; cook until fragrant and the peppers soften, 5–8 minutes. Season with salt and pepper.
Stir in the Thai red curry paste and cook for about 1 minute until fragrant. Pour in the coconut milk, soy sauce, and fish sauce, stirring to combine; bring the sauce to a boil.
Add the baked meatballs to the skillet and simmer, stirring occasionally, until the sauce thickens slightly, about 5 minutes. Remove from the heat and stir in the chopped cilantro or basil.
In a small bowl combine the diced mango, chopped jalapeño or Fresno pepper, lime zest, and lime juice to make the spicy mango topping.
Serve the meatballs and curry sauce over steamed rice and top with toasted coconut, the spicy mango mixture, and additional herbs if desired.