Bring a large pot of salted water to a rolling boil. Add tri-color pasta and cook until al dente, about 8-10 minutes. Drain, rinse under cold water.

In a mixing bowl, combine cooled pasta, cheddar cheese, bacon, lettuce, ham, turkey, and tomato. Mix gently.

Add mayonnaise and ranch seasoning to the bowl. Fold the ingredients together until well combined.

Cover and refrigerate for at least 6 hours or overnight to meld flavors.

Before serving, stir, adjust seasoning with salt and pepper, and serve cold.