Begin by pouring enough oil to slightly cover the bottom of the skillet, then cook the chicken thoroughly.
While the chicken is cooking, combine all soy sauce, Worcestershire sauce, ginger, and 1/2 cup of the pineapple juice. Mix this well, then add in the corn starch and continue to stir.
Once the chicken is cooked, pour the mixture onto the chicken and mix. Let this simmer until it is completely soaked into the chicken.
Once the chicken mixture is soaked in, add in the stir fry veggies and the canned pineapple and let simmer with the chicken for 5-10 minutes or until heated through.