If the sun-dried tomatoes are jarred in oil, drain the oil, then dice the tomatoes into small, bite-sized pieces.
Add the chicken, mayo, pesto, and sun-dried tomatoes to a bowl.
Mix all the ingredients together until they’re fully combined. Lightly season the chicken salad with pepper.
Once the chicken salad is mixed together, you can add more pesto and/or mayo to taste, one tablespoon at a time, until it's the consistency you prefer.
Serve and enjoy right away or cover and store in the refrigerator until you’re ready to eat it, up to 4 days in advance, per USDA.
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Notes
Tip: Pesto is usually salty, so don't season the chicken salad with salt until you've fully combined all the ingredients and tasted it. Storage: To store leftovers, transfer to an airtight container and seal. Store in the refrigerator for 3-4 days, per USDA. Ingredients notes:
Optionally, add 1 tablespoon of minced red onion for more flavor and crunch.
I recommend sun-dried tomatoes packed in oil for more flavor, and when possible, buying sulfite-free tomatoes.
For Whole30: Use my compatible dairy-free pesto, compatible mayo, and sugar-free and sulfite-free tomatoes.
For Low Carb: Use sugar-free tomatoes and sugar-free mayo.