Prep the chicken: If using rotisserie or leftover chicken, remove skin and bones, then chop or shred into bite-size pieces.
Blend the creamy base: In a medium bowl, stir cottage cheese, Greek yogurt or mayo, lemon juice, and Dijon until combined. For a smoother texture, mash slightly with a fork.
Add aromatics: Fold in celery, red onion, dill or parsley, garlic powder, salt, and pepper.
Combine: Add the chicken and gently mix until everything is well coated.
Adjust seasoning with extra salt, pepper, or lemon juice.
Customize: Stir in any optional mix-ins like grapes, apple, nuts, capers, or pickles for extra flavor and texture.
Chill (optional but great): Cover and refrigerate for 20–30 minutes to let flavors meld.
Serve: Spoon onto mixed greens, stuff into a pita or wrap, spread on toast, or pair with crackers and sliced veggies.