imitation crab recipe

### Ingredients: - **1 pound** imitation crab meat, chopped - **1/2 cup** mayonnaise - **1 tablespoon** Dijon mustard - **1/4 cup** finely chopped celery - **1/4 cup** finely chopped red onion - **1 tablespoon** lemon juice - **Salt and pepper**, to taste - **1 teaspoon** fresh dill or parsley, chopped (optional)