Asian Sesame Noodles with Chicken

linguine or spaghetti

Salt and pepper

boneless, skinless chicken breast halves, trimmed

creamy or crunchy peanut butter

reduced-sodium soy sauce

seasoned rice vinegar

sesame oil

crushed red pepper

finely chopped fresh ginger

small cucumber, seeded, sliced and cut crosswise into thin strips

ripe plum tomato, thinly sliced

scallions, thinly sliced