Mighty Hero

Directions

1. 1
   Slice bread in half horizontally, using an electric or serrated knife.
2. 2
   Carefully remove soft bread from inside each half, leaving 1/2-inch-thick shells.
3. 3
   Set aside; reserve soft bread for another use.
4. 4
   Combine vinegar and next 5 ingredients in a shallow baking dish; add mushrooms, tomato slices, and onion rings.
5. 5
   Let stand 15 to 20 minutes.
6. 6
   Drain with a slotted spoon, reserving marinade.
7. 7
   Brush marinade evenly inside each bread cavity.
8. 8
   Spoon 1 cup zucchini into bottom half; arrange half of mushroom mixture over zucchini.
9. 9
   Layer with 4 turkey slices and 3 cheese slices.
10. 10
    Repeat layers with remaining zucchini, mushroom mixture, turkey, and cheese.
11. 11
    Top with remaining half of loaf.
12. 12
    Wrap loaf securely in heavy-duty aluminum foil, and chill until ready to serve.
13. 13
    To serve, unwrap and slice loaf into wedges.