Cook Rotini according to package directions; rinse to cool and drain well. Place in large bowl and add black olive slices, cheddar cheese and meat; stir to combine. Add enough ranch dressing with bacon to moisten; stir. Shake in enough zesty Italian dressing to give it a little punch of flavor. Chill for at least two hours.

Taste this just before serving as you may want to add a little more dressing.