INGREDIENTS
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Ingredients
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1 pound ground beef
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1 tablespoon chopped onion
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2 teaspoons cornstarch
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1 can (14-1/2 ounces) diced tomatoes, undrained
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1 teaspoon dried oregano
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1/4 teaspoon salt
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1/4 teaspoon onion salt
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10 slices process cheese (Velveeta), divided
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4 hamburger buns, split