Philly Beef ‘n’ Pepper Strata

Directions

1. Place a third of the bread cubes in a greased 13x9-in. baking dish. Layer with a third of the peppers, onion, roast beef and cheese. Repeat layers twice. In a large bowl, whisk the eggs, milk, mustard, salt and pepper; pour over top. Cover and refrigerate for 8 hours or overnight.
2. Remove from the refrigerator 30 minutes before baking. Bake, covered, at 325° for 1 hour. Uncover; bake 15-20 minutes longer or until a knife inserted in the center comes out clean. Let stand for 10 minutes before serving.