Preheat oven to 350°F (175°C).

In a large food processor, combine the drained and rinsed white beans, ricotta cheese, and hot wing sauce.

Process until a smooth puree is formed.

Transfer the bean mixture to a bowl.

Stir in the finely chopped celery, chopped white onion, and blue cheese crumbles (or feta cheese).

Prepare a shallow baking dish (such as a 9-inch glass pie dish) with baking spray.

Transfer the dip mixture into the prepared baking dish.

Bake uncovered for 20 minutes, or until the dip is heated through and bubbly.

Serve warm with tortilla chips or crudités for dipping.