Prepare teriyaki sauce: In a medium bowl, combine all sauce ingredients; whisk until combined and honey dissolves. Set aside.
In a large wok or skillet on high, heat 1 tsp grape seed oil, swirling to coat bottom of pan. Add chicken and sesame oil and stir-fry until browned, about 3 minutes. Transfer to a medium bowl.
Keep wok on high and heat 1 tsp grape seed oil. Add shrimp and stir-fry until pink, about 2 minutes. Transfer to bowl with chicken. Heat remaining 1 tsp grape seed oil in wok, and add bell pepper and broccoli; stir-fry until tender-crisp, about 1 minute.
Return chicken, shrimp and any juice to wok. Add corn and teriyaki sauce. Bring to a boil, reduce heat to medium, and cook, tossing occasionally, until chicken and shrimp are cooked through, vegetables are tender-crisp and sauce has thickened slightly, about 3 minutes. Sprinkle with scallions and chile (if using).
Asparagus is a rich source of the B-vitamin folate (also known as vitamin B9), a water-soluble vitamin that is key for red blood cell formation and the prevention of anemia. Folate also supports DNA synthesis and repair as well as nerve function.
Savory soy sauce, sweet honey and fiery ginger give this stir-fry personality, but the chunks of juicy mango are really what take this dish up a notch. Serve with brown rice or quinoa to round out the meal.