In a bowl, mix cornstarch, lemon juice, soy sauce, ginger, and chicken broth. Add the chicken and marinate for 15 minutes.
Heat 2 tablespoons of oil in a large skillet or wok over medium-high heat. Remove chicken from marinade (reserve marinade) and stir fry for about 4 minutes until lightly browned. Transfer to a plate.
Add the remaining oil to the same skillet. Sauté the shallot for 2–3 minutes.
Add bell pepper, cabbage, and carrot. Stir fry for about 4 minutes until the cabbage softens slightly.
Return the chicken to the pan and pour in the reserved marinade.
Add peas and cook until the sauce thickens and the chicken is fully cooked.
Garnish with scallions and sesame seeds. Serve hot.
This Chicken Cabbage Stir Fry pairs perfectly with rice or can be enjoyed on its own for a lighter meal.