Asian Lettuce Wraps
- Rinse whole lettuce leaves and pat dry, being careful not to tear them; set aside.
- Heat oil in a large skillet over medium-high heat. Add beef; cook and stir until browned and crumbly, 5 to 7 minutes. Drain and discard grease; transfer beef to a bowl. Add onion to the same skillet; cook and stir until just tender, 5 to 7 minutes.
- Stir in hoisin sauce, garlic, soy sauce, vinegar, ginger, and chile pepper sauce until well combined. Add water chestnuts, green onions, sesame oil, and cooked beef; cook and stir until the onions just begin to wilt, about 2 minutes.
- Arrange lettuce leaves on a large serving platter; spoon beef mixture in the center of leaves.