OK, the cheese isn't grilled, but when the melted cheese puddles in the soup and is topped with toasty croutons, it sure makes one think of that great soup and sandwich combo!
Philly Cheese Steak Casserole (Cooking for Two))
Melted-Cheese Rolls with Tomato Soup
Tomato-Dill Grilled Cheese Sandwiches (Cooking for 2)
Bacon and Tomato Mac and Cheese for Two
Italian Tomato Soup with Pesto-Cheese Toasts
Grands!® Buffalo Chicken Sandwiches