Rinse chicken breasts with cold water, pat dry and cut into ¾″ pieces.
In large wok or skillet, heat oil until hot but not smoking. Add chicken and stir fry 1-1 ½ minutes or until it just begins to turn opaque. Add Mann’s California Stir Fry and cook over medium-high heat, stirring and tossing until broccoli turns bright green, about 1 minute. Pour in sauce, diced tomatoes, corn and cook for about 2 minutes until sauce has slightly thickened.