Ingredients
Directions
- 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.
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