Prep the chicken. Use chilled, cooked chicken and chop or shred into bite-sized pieces. Smaller pieces make the salad creamier and easier to scoop.
Make the dressing. In a large bowl, whisk together mayonnaise, Greek yogurt, Dijon, lemon juice, minced garlic, and a spoonful of the sun-dried tomato oil. Add a pinch of salt and pepper.
Add the flavor boosters. Stir in the chopped sun-dried tomatoes, parmesan, basil, red onion, and celery.
Mix until everything is coated.
Fold in the chicken. Add the chicken to the bowl and gently fold until evenly combined. Adjust thickness with a splash of lemon juice or a teaspoon of mayo if needed.
Season to taste. Add more salt, pepper, and red pepper flakes if you like heat. The parmesan is salty, so season gradually.
Chill for 20–30 minutes. This helps the flavors meld and firms up the texture.
It’s worth the wait.
Serve your way. Spoon into lettuce cups, over mixed greens, into a low-carb wrap, or alongside sliced cucumbers and bell peppers.