Mini Taiwanese Meatballs

Name: Mini Taiwanese Meatballs
Ingredients: 12 ounces ground beef; 1 tablespoon peeled and finely grated fresh ginger; 4 cloves garlic, finely chopped; 2 red chiles, seeded and finely chopped; 1 large scallion, finely chopped; 1 tablespoon Shaoshing rice wine or dry sherry; 1 tablespoon light soy sauce; 1 teaspoon cornstarch; 1 teaspoon toasted sesame oil; 1 teaspoon light brown sugar; Pinch sea salt; Pinch freshly ground black pepper; 4 cups vegetable oil, for frying; 2 ounces large baby spinach leaves, Little Gem leaves, or small butter lettuce leaves; 1/4 cup sweet chili sauce, for serving; Fresh cilantro leaves, for garnish; Fresh mint leaves, for garnish