For serving: Lettuce cups, croissant or bread, crackers
In a large bowl, stir together the mayonnaise, yogurt and lemon juice. Stir in green onions, brown sugar, fresh dill, salt, garlic powder, and black pepper until combined.
Next, stir in the chicken, celery, grapes and cashews until it is evenly coated. Store in the refrigerator for at least 15 minutes or until ready to serve. Add more dill, salt and pepper to taste.
Serve the mixture on bread, lettuce cups or dip in crackers.
Storage: Store in a covered container in the refrigerator for up to 3 days.Make ahead: This mixture is best served the first day. You may also make the night before; however, wait to mix the grapes, celery & nuts in until ready to serve so they stay crunchy.Substitutions: You may substitute the croissant for sliced bread, red onion for green onion, apples or raisins for the grapes and pecans or almonds for the cashews.Nutrition: Please note that the nutrition information provided below is an estimate based on an online nutrition calculator. It will vary based on ingredients used.