INGREDIENTS
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1 egg
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3/4 cup milk
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1 cup shredded cheddar cheese
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1/4 cup onion, chopped
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1/2 cup quick-cooking oat
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1/3 cup ketchup
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1 teaspoon salt
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1/2 teaspoon ground black pepper
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1 1/2 lbs lean ground beef
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2/3 cup ketchup
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1/4 cup packed brown sugar
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1 1/2 teaspoons prepared mustard