Easily Elegant Chicken

Cut chicken breasts into bite-size pieces; sprinkle with 1/2 teaspoon of the salt and 1/4 teaspoon of the pepper. In frypan, place olive oil and heat over medium high temperature. Add chicken and cook, turning, about 5 minutes or until light brown. Add green pepper and mushrooms and continue to stir and cook until vegetables are tender, about 5 minutes. Add chopped tomatoes, remaining 1/2 teaspoon of the salt, 1/4 teaspoon of the pepper and sherry. Cook about 5 minutes more, stirring several times. Serve hot over fettuccine noodles.