INGREDIENTS
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1 lb lean ground beef
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1⁄2 cup dry bread crumbs
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2 tbsp onion, finely chopped or 1/4-1/2 teaspoon onion powder
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1 tsp salt
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1⁄2 tsp Worcestershire sauce
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1 egg
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1 tbsp parmesan cheese, grated
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1 jar (32 ounce) spaghetti sauce
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6 to 8 hot dog buns
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1 mozzarella cheese, sliced or shredded