Tuna Melts

1 (1 pound) loaf French bread

1 small sweet onion, peeled and diced

1 (12 ounce) can tuna, drained

2 cups mozzarella cheese, shredded

1 cup mayonnaise

Preheat oven to 350 degrees F (175 degrees C).

In a mixing bowl, combine sweet onion, drained tuna, mozzarella, and mayonnaise. Mix thoroughly.

Spread tuna mixture on slices of French bread to form a sandwich. Place sandwiches on a cookie sheet.

Bake in a preheated oven for 10 minutes.