If your chicken isn’t cooked yet, cook and cool it first (poached, baked, or rotisserie works). Shred or chop into bite-size pieces.
In a bowl, mix cottage cheese, Dijon mustard, lemon juice, salt, pepper, and garlic powder until creamy. For a smoother “classic chicken salad” feel, lightly mash the cottage cheese with a fork before mixing.
Add chicken, celery, and onion. Fold gently until everything is evenly coated.
Stir in herbs and any add-ins you like (pickles for tang, grapes/apple for sweet crunch, or chili flakes for heat).
Taste and adjust—more lemon for brightness, more mustard for bite, more salt to bring it all together.
Cover and chill for at least 20–30 minutes so the flavors blend. Serve cold in a sandwich, wrap, lettuce cups, or with crackers and cucumber slices.