Step 1

Bring a large pot of lightly salted water to a boil.

Step 2

Cook pasta in the boiling water, stirring occasionally until cooked through but firm to the bite, 10 to 12 minutes.

Step 3

Drain and rinse under cold water.

Step 4

Whisk Italian-style dressing and mayonnaise together in a large bowl.

Step 5

Stir pasta, chicken, bacon, Muenster cheese, celery, green bell pepper, cherry tomatoes, and avocado into dressing until evenly coated.