"My family was so accustomed to a typical beef burger that they were hesitant to try these when I first made them. Any skepticism disappeared after one bite. —Kim Stoller, Smithville, Ohio..."
INGREDIENTS
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1 large egg, lightly beaten
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1/2 cup dry bread crumbs
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1/2 cup finely chopped celery
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1/3 cup mayonnaise
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1/4 cup finely chopped onion
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2 tablespoons chili sauce
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1 pouch (6.4 ounces) light tuna in water
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2 tablespoons butter
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4 hamburger buns, split and toasted
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Lettuce leaves and sliced tomato, optional