INGREDIENTS
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6 ounces uncooked spaghetti pasta
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1 pound ground beef
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1 cup chopped onions
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3/4 teaspoon salt
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1/4 teaspoon black pepper
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1/2 teaspoon chili powder
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3/4 cup shredded cheddar cheese
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1 tablespoon Worcestershire sauce
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1 1/4 cup ketchup
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1 tablespoon prepared mustard
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3/4 cup beef stock
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1/2 cup shredded mozzarella cheese