INGREDIENTS
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Tuna, 2 cans, drained
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Onion, medium size, chopped
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Celery, 1/2 stalk, chopped
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Garlic (1 clove), minced
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Parsley, 1 tablespoon, chopped
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Mayonnaise, 3-4 tablespoons
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Olive Oil, 3 tablespoons, divided
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Mozzarella, 1/3 cup, shredded
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Bread, sliced
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Butter, softened
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Salt and Pepper to taste