Low Carb Korean Beef Lettuce Wraps

Name: Low Carb Korean Beef Lettuce Wraps
Ingredients: 1 teaspoon sesame oil; 1 pound ground beef; 1 cup julienne-style carrots (or use shredded carrots, if desired); 4 tablespoons low sodium soy sauce; 3 cloves garlic (finely minced); 1 tablespoon grated fresh ginger; 1 tablespoon rice vinegar; 3 tablespoons Stevia brown sugar ((I like the Truvia brand)); 1/4 teaspoon Sriracha hot sauce ((optional, or add more if desired)); 3 teaspoons water; 2 teaspoons cornstarch; 12 medium green lettuce leaves (or use butter lettuce or iceberg lettuce, if you prefer); sliced green onions and sesame seeds for garnish