crab salad recipe

Ingredients: 500g cooked crab meat (fresh or canned) 1/2 cup mayonnaise 1 tablespoon Dijon mustard 1 tablespoon lemon juice 1 celery stalk, finely chopped 1/4 red onion, finely chopped 1/4 cup fresh dill, chopped Salt and pepper to taste Optional: 1/2 avocado, diced