Cheesy Stuffed Sandwich

Directions

1. 1
   Preheat oven to 425F.
2. 2
   Cut a 1/2-inch-thick slice off top of bread loaf; set aside.
3. 3
   Hollow out bottom of loaf with your hands, leaving 1/2-inch-thick shell.
4. 4
   (Reserve removed bread for another use.)
5. 5
   Brush mustard onto cut sides of bread.
6. 6
   Fill loaf with layers of half of the cheese, the ham, tomatoes and onions; sprinkle with remaining cheese.
7. 7
   Cover with top of bread.
8. 8
   Wrap in foil.
9. 9
   Bake 30 to 35 min.
10. 10
    or until filling is heated through and cheese is melted.
11. 11
    Let stand 10 min.
12. 12
    before cutting crosswise into 8 slices to serve.