Hawaiian Turkey Sandwich

1 round loaf of Hawaiian bread
1/4 cup mayo
2 tbsp. brown mustard
1 lb. oven roasted turkey breast
3/4 cup spinach leaves
1/2 of a medium red onion, thinly chopped
1/2 cup shredded Monterey Jack cheese

Preheat oven to 400 degrees. Cut a 1/2 inch thick slice from top of bread loaf; remove center of loaf, leaving 1-inch-thick shell. Reserve removed bread for another use. Spread inside of bread shell and cut-side of top of loaf with mayo and mustard.
Fill bread shell with layers of turkey, spinach, onions and cheese; cook with top of bread loaf. Wrap in aluminum foil.
Bake 30 min. or until cheese is melted and sandwich is heated through. Let stand 10 min. Cut into 4 wedges with serrated knife. Serve warm.
Makes 4 servings