Sprinkle chicken with paprika. In a fry pan cook chicken on medium high about 10 minutes or until browned on all sides. Remove chicken; set aside.
To drippings in same pan add mushrooms, onion and garlic. Cook, stirring, about 4 minutes or until vegetables are tender. Stir in tomatoes, salt, red pepper.
In a large casserole, place cooked linguini. Add tomato mixture, peas and shrimp; stir to mix. Arrange chicken over pasta mixture; cover and bake at 350 degrees about 45 minutes or until chicken is fork tender. Sprinkle parsley over chicken and pasta. Makes 4 servings.