Bake this irresistible Baked Challah Bread Casserole at home. Made with bread, cheese, mushrooms and dry mustard. Easy step-by-step instructions included.
This Baked Challah Bread Casserole relies on simple, everyday ingredients such as grated sharp cheese, mushrooms, dry mustard and salt. It comes together quickly and makes 4 servings, at about 1043 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.
Updated Jun 30, 2026