INGREDIENTS
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1/2 cup ketchup
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1 1/2 tablespoons Dijon mustard
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1 pound ground sirloin
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3/4 cup finely chopped onion
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1/4 cup seasoned breadcrumbs
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1/2 teaspoon salt
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1/2 teaspoon dried oregano
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1/8 teaspoon black pepper
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1 large egg, lightly beaten
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Cooking spray