In a large mixing bowl, combine 1 lb ground turkey, 1 cup breadcrumbs, 1 egg, 1 tsp garlic powder, 1 tsp onion powder, 1 tsp salt, and ½ tsp black pepper. Mix thoroughly until all ingredients are well incorporated. You can use your hands for efficient mixing.
Shape the mixture into 1-inch meatballs and arrange them on a baking sheet lined with parchment paper. Make sure to leave some space between each meatball for even cooking.
Bake the meatballs in a preheated oven at 400°F (200°C) for about 15-20 minutes, or until they are golden brown and cooked through. You can use a meat thermometer; the internal temperature should reach 165°F (75°C).
While the meatballs are baking, heat a tablespoon of oil in a large skillet over medium heat. Add 1 diced onion and 1 diced bell pepper to the skillet. Sauté for 5-7 minutes, or until softened and slightly caramelized.
Add 1 cup pineapple chunks and ½ cup sweet chili sauce to the skillet, stirring to combine. Let the mixture simmer for another 3-4 minutes, allowing the flavors to meld together.
Once the meatballs are done, carefully add them to the skillet and toss them in the pineapple sauce until they are well coated. Cook for an additional 2-3 minutes to heat through.
Serve the meatballs over cooked rice or quinoa, garnishing with green onions for a visually appealing presentation.