1. Preheat oven to 375°F (190°C). Line a baking sheet with parchment paper.
2. In a large bowl, mix ground beef, breadcrumbs, egg, 1 tablespoon soy sauce, ginger, half the garlic, salt, and pepper until well combined. Form into 1-inch meatballs and place on the baking sheet.
3. Bake meatballs for 15-18 minutes until browned and cooked through, turning halfway.
4. While meatballs bake, in a saucepan over medium heat, combine pineapple juice, sweet chili sauce, hoisin sauce, remaining soy sauce, rice vinegar, sesame oil, and remaining garlic. Simmer for 5 minutes until thickened.
5. Add drained pineapple chunks to the sauce and cook for another 2 minutes.
6. Toss baked meatballs in the pineapple sauce to coat evenly.
7. Garnish with green onions and sesame seeds. Serve hot over rice or as an appetizer.
Prep Time: 15 minutes
Cook/Chill Time: 25 minutes
Total Time: 40 minutes
Servings: 4
Calories: 420 per serving