Creamy Celery Casserole is a delicious and comforting dish that combines tender celery with a creamy sauce and a crispy breadcrumb topping. The celery is cooked until tender and then mixed with a creamy mixture of cheese, mayonnaise, and seasonings. The casserole is then topped with a buttery breadcrumb mixture and baked until golden and bubbly. This dish is perfect as a side dish for a holiday meal or as a main course for a vegetarian dinner. It's a great way to enjoy the flavors of celery in a new and delicious way.