heavy-duty aluminum foil
For a quicker bread fix-up, spread cheese mixture on French bread slices, and place slices, cheese sides up, on the rack in a broiler pan. Broil with tops 2 to 3 inches from heat 1 to 2 minutes or until cheese is melted.
Spread cheese mixture over cut sides of bread. Reassemble loaf. Cut bread crosswise into 1-inch slices. Reassemble loaf, and wrap securely in heavy-duty aluminum foil.