Spedini Bread
["2 (20-inch) loaves French bread", "1/2 c. chopped or sliced onion", "1 stick butter", "3 to 4 Tbsp. mustard", "2 Tbsp. poppy seed", "1 lb. sliced Swiss cheese", "16 slices bacon (optional)"]
["Slice bread longways or at 1-inch intervals almost through. Saute onion in butter; add mustard and poppy seed.", "Spoon this mixture into cuts in loaf.", "Insert Swiss slices.", "Arrange bacon on top of loaf.", "May be wrapped in foil and frozen at this point. Bake, uncovered, at 350\u00b0 for 10 to 15 minutes (30 minutes if frozen) until cheese melts and bacon is crisp."]
["loaves", "onion", "butter", "mustard", "poppy seed", "Swiss cheese", "bacon"]