How long is Costco chicken salad good for?

In this article, we will answer the question “How long is Costco chicken salad good for?”, and how to tell if a chicken salad is rotten or spoiled?

How long is Costco chicken salad good for?

If stored correctly, Costco chicken salad stays good for about 3 days in the fridge. You can freeze your Costco chicken salad but it does not mean that you should. 

Because the mayo separates when exposed to freezing temperatures and the quality of the chicken salad reduces considerably after thawing. If you freeze your chicken salad anyway, expect it to stay safe for up to 3 months in the freezer. 

Frozen Costco chicken salad is best consumed within 1 month of storage. Read on if you want to know how to make this rich and moist goodness at home.

How to tell if a chicken salad is rotten or spoiled? 

A bad chicken salad can be identified using the following signs. 

Discoloration: If fuzzy and discolored patches appear on your chicken salad, it is done for. Fungus grows in the form of green fuzzy spots or patches on the surface of the chicken salad. If you do not notice any organic growth, you will see that the color of the chicken salad looks dull.

Moist: An overly moist or watery salad is a spoiled salad and it does not go unnoticed. 

Rotten smell: The rotten smell of chicken is terrible and it cannot be ignored. If your chicken salad gives off a funny or putrid smell, it has gone bad. 

Bad taste: If all else looks fine, you can taste only a bit of the suspected chicken salad. If the taste is off, discard your chicken salad right away. 

Copycat Costco chicken salad recipe 


  • Rotisserie chicken (1/2 bird)
  • 1 cup sour cream
  • 1/2 cup mayo
  • 4 stalks celery, chopped finely
  • 1/3 cup sweet onion, chopped finely
  • Salt 1 teaspoon
  • Sugar 1 teaspoon
  • 1 tablespoon Lemon juice
  • 1 teaspoon Parsley
  • White vinegar – 1 tbsp


  1. Separate the chicken from the bones and discard the skin. 
  1. Take about ½ of the chicken from a Costco rotisserie chicken and chop it up using a food chopper. 
  1. Finely chop celery and sweet onions in the food chopper as well.
  1. In a small mixing bowl, combine mayonnaise, sour cream, salt, sugar, lemon juice, parsley, and vinegar until homogenous. 
  1. In a separate bowl, mix chicken, celery, and onion. Then stir in the prepared dressing.
  1. Refrigerate your Costco chicken salad for a couple of hours before serving for best results.

Add-ins for chicken salad 

Chicken salad does not need to be boring. You use your favorite add-ins to enhance the appeal and flavor profile of the otherwise basic chicken salad. 

For example, you can use chopped roasted walnuts, almonds, or cashews for adding texture and crunch to your chicken salad. 

Similarly, you can scallions, olives, pickles, diced carrots, bell peppers for a color pop in your chicken salad. Finely chopped veggies add a lot of flavor and texture to your chicken salad. 

If you have a sweet tooth, go ahead and use mandarin oranges, diced peaches, seedless grapes, and dried fruits to enhance the flavor of your chicken salad. 

What to serve with chicken salad? 

Chicken salad is an excellent stand-alone meal but you can pair it with something light and refreshing to complement its savory flavors. A fruit or a vegetable platter rounds up the meal pretty well. 

If you want bread alongside your chicken salad, go with a baguette. Moreover, feel free to improvise and test new combinations. 

Other serving options for chicken salad are potato chips (low-fat), deep-fried potato chips, quick and easy dill pickles, a loaded green salad, cheese straws, creamy sweet macaroni salad, wild rice salad with dried fruit and almonds, creamy bacon potato soup, etc.

Can you freeze potato salad made with mayonnaise? 

Mayonnaise, celery, and eggs do not freeze well. When the mayo will separate during freezing, the potatoes will start to brown. Therefore, you should never freeze a prepared potato salad with mayonnaise. 

What you can do instead is to freeze the potatoes separately. When you are ready to serve the salad, defrost the potatoes in the fridge, make the dressing, and toss your potatoes in the freshly prepared dressing. Do not refrigerate the leftovers of your potato salad for more than 3 days. 


In this article, we answered the question “How long is Costco chicken salad good for?”, and how to tell if a chicken salad is rotten or spoiled?


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.