crab salad recipe

▢1/2 cup celery finely chopped ▢3 tablespoons red onion finely chopped ▢1/2 teaspoon Old Bay seasoning ▢2 teaspoons lemon juice ▢salt and pepper to taste ▢1/2 cup mayonnaise ▢1 1/2 tablespoons fresh dill chopped, plus more for garnish