Prep the chicken: If using rotisserie, remove skin and bones, then chop or shred. For poached or grilled chicken, let it cool before dicing to keep the salad from getting watery.
Make the dressing: In a large bowl, whisk together mayonnaise, sour cream, ranch seasoning, lemon juice, and Dijon.
Taste and adjust salt and pepper before adding the mix-ins.
Add the crunch: Stir in celery and onion. These give bite and freshness, so keep them finely chopped for even texture.
Fold in the chicken: Add the chicken and mix until everything is lightly coated. Don’t mash—keep the pieces intact for better texture.
Load it up: Add cheddar, bacon, and fresh dill or parsley.
Fold gently until distributed. If using avocado, stir it in last to keep the cubes intact.
Chill: Cover and refrigerate for at least 30 minutes. This helps the flavors settle and the dressing cling to the chicken.
Serve: Spoon over lettuce, stuff into lettuce wraps, pair with cucumber rounds, or serve in a low-carb tortilla.
A squeeze of lemon on top brightens everything.