Yaki Mandu

Ingredients

• 1 pound ground beef
• 1 1/2 cups vegetable oil for frying
• 1/2 cup finely chopped green onions
• 1/2 cup finely chopped cabbage
• 1/2 cup finely chopped carrot
• 1/2 cup minced garlic
• 4 teaspoons sesame oil, divided
• 1 tablespoon toasted sesame seeds
• 1/2 teaspoon monosodium glutamate (such as Ac'cent®)
• salt and ground black pepper to taste
• 2 eggs
• 1 (16 ounce) package wonton wrappers
• 3 tablespoons soy sauce
• 2 teaspoons rice wine vinegar
• 1 teaspoon toasted sesame seeds, or more to taste