Heat oil in a pan over medium-high heat. Once hot add onion and sauté until onion softens and becomes translucent.
1 Tablespoon olive oil, 1 chopped medium onion
Add ground chicken and cook until browned around 6-7 minutes.
1 pound ground chicken
Add the bell peppers and water chestnuts and cook on a medium flame for 2-3 minutes or until the peppers soften a little.
1 red bell pepper, 1 green bell pepper, 8 ounce whole canned water chestnuts
In a medium bowl, whisk all the ingredients given under sauce.
2 Tablespoons soy sauce, 3 Tablespoon hoisin sauce, 1 Tablespoon sesame oil, 1 teaspoon minced garlic, 1 teaspoon minced ginger, 1 Tablespoon peanut butter, 1 teaspoon sriracha
Pour the sauce into the chicken mixture and let it simmer on low heat until the chicken and veggies are well coated with the sauce. Season with salt and pepper.
1/2 teaspoon salt, 1 teaspoon black pepper powder
To serve, spoon 2-3 tablespoons of the chicken mixture into the center of the lettuce leaf and top it with some chopped spring onions and sesame seeds.
chopped spring onions, lettuce leaves, sesame seeds