Cut chicken in strips. Marinate in juice of lime for 15 minutes. Sprinkle with garlic powder and let sit 10 more minutes.
In the meantime, saute onion until shiny. Add peppers and mushrooms. Cook until crunchy, do not over cook.
In separate pan, saute chicken strips in butter or oil very quickly until chicken turns white, stirring constantly. Lower heat, add lemon juice and wine. Combine chicken with vegetables. Mix and serve over linguini or rice. Serves 6 to 8.