In a small bowl stir together orange juice, cornstarch, soy sauce, orange zest and sriracha. Set aside.
Season chicken with salt.
Heat 1 T oil in a large high sided skillet over high heat or wok.
Add vegetables to pan and cook, stirring, for about 3-4 minutes. Remove veggies from pan and set aside in a bowl or on a plate.
Return pan back to stove and heat remaining 1 T oil. Place the chicken in the heated pan. Cook, stirring, until chicken is cooked thru. About 5-7 minutes.
Return veggies back to pan and pour sauce into pan. Stir well to combine. Add noodles and toss to be sure everything is coated well with sauce. Cook just 1-2 minutes until sauce has thickened up.
Serve.
If desired, garnish with cashews, peanuts or cilantro.