Preheat oven to 425℉ and line a rimmed baking sheet with parchment paper.
In a large bowl, add 1 pound turkey, ¼ cup bread crumbs, 3 eggs, 3 chopped green onions, and 3 cloves minced garlic. Mix together until just combined.
Portion turkey mixture into 20 1-inch meatballs. Place in an even layer on prepared baking sheets.
Bake, flipping meatballs halfway through, until golden brown and fully cooked and a meat thermometer reaches 165°F, about 15 to 20 minutes.
In a small slow cooker, add 12 ounces marmalade, ¼ cup sweetener, 2 tablespoons Sriracha, lime juice, and 1 tablespoon soy sauce. Combine well.
Add meatballs and toss to coat. Cover and cook on high for 2 hours, or on low for 4 hours until flavors develop.
Top with remaining onions and 1 teaspoon sesame seeds.