Slow-Cooker French Onion Soup
I happen to have the downloaded Betty Crocker soups booklet. Here are the instructions in that booklet for the Cheesy Broiler French Bread:
Set oven control to broil. Place bread slices on ungreased cookie sheet. Sprinkle with cheeses. Broil with tops 5 to 6 inches from heat 1 to 2 minutes or until cheeses are melted.
Then you proceed to put them on top of the soup bowls.