Mix all dressing ingredients in a large serving bowl until well blended.
Place chicken in a Dutch oven with just enough water to cover. Bring to a boil, reduce heat, and simmer (uncovered) for 10 minutes, or until chicken is done and no longer pink in center.
Remove chicken to cutting board to cool.
water to the pot to cook the pasta twists. Bring to a boil, add pasta, and cook 8 to 10 minutes or until just tender but still somewhat firm.
While pasta is cooking, fry bacon until crisp. Drain on paper towels then cut or crumble in small pieces. Add hot pasta to dressing in the bowl and toss to mix and coat thoroughly. Tear chicken in bite-size pieces and add to the salad with bacon, lettuce pieces and chopped tomato. Toss gently to mix.
Calories per serving: 353
Fat per serving: 12.9g