Ingredients

• 3 tablespoons neutral oil, such as canola or avocado, divided
• 8 ounces 90%-lean ground beef
• ½ teaspoon salt, divided
• 2 tablespoons rice vinegar
• 2 tablespoons shaoxing rice wine or dry sherry
• 1 tablespoon toasted sesame oil
• 1 ½ teaspoons fish sauce
• 1 teaspoon granulated sugar
• ½ teaspoon ground white pepper
• 1 ½ pounds green beans, trimmed and halved
• ½ cup sliced scallion whites, plus sliced scallion greens for garnish
• 6 cloves garlic, minced
• 2 teaspoons grated fresh ginger