Cut chicken into bite-sized strips. In a small bowl stir together soy sauce, dry sherry, and cornstarch. Add chicken; stir to coat. Cover and chill for 30 minutes.
Meanwhile, cook linguine according to package directions, omitting oil and salt. Drain well.
Add cooking oil and sesame oil to a wok or 12-inch skillet. Preheat over medium-high heat (add more oil if necessary during cooking). Add mushrooms, red or green sweet peppers, and green onions to wok; stir-fry for 2 minutes. Add pea pods and stir-fry about 1 minute more or until vegetables are crisp-tender. Remove vegetables from wok.
Drain chicken, reserving liquid. Stir-fry chicken for 2 to 3 minutes or until no longer pink. Combine water, bouillon granules, and reserved marinade; add to wok. Cook and stir until thickened and bubbly. Add drained linguine and cooked vegetables. Stir to coat. Cook and stir about 1 minute more or until heated through. Makes 4 servings.