The British holiday Boxing Day is linked to ideas of charity and also to the tradition of boxing up Christmas leftovers. This savory bread pudding is the answer to holiday dinner leftovers, making use of extra turkey and bread.
Preheat oven to 350°.
Heat oil in a large nonstick skillet over medium heat. Add mushrooms, celery, onion, thyme, and garlic; cook 10 minutes or until tender, stirring occasionally. Stir in turkey, salt, and black pepper. Remove mixture from heat, and cool slightly.
Combine milk, mustard, red pepper, and eggs in a large bowl, stirring with a whisk. Stir in mushroom mixture and bread; toss well. Spoon into an 11 x 7-inch baking dish coated with cooking spray. Sprinkle with cheese. Bake at 350° for 1 hour or until golden brown. Let stand 10 minutes before serving.