Asian Beef Lettuce Cups

Name: Asian Beef Lettuce Cups
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Yield: 6
Ingredients: Ingredients; 1 tablespoon avocado or extra virgin olive oil; ½ yellow onion, small diced; 2 carrots, peeled and small diced; 2 celery sticks, small diced; 2” piece of ginger, peeled and minced; 2 cloves of garlic, minced; 2 pounds lean ground beef; ¼ cup low-sodium soy sauce; ½ cup hoisin sauce; ½ cup raw unsalted peanuts, chopped; ½ teaspoon crushed red pepper flakes; 1 bunch scallions, sliced (whites and greens separated); 1 bag of romaine hearts or butter lettuce, washed and trimmed