All your favorite ingredients are featured in this easy slow-cooker version of Spaghetti Casserole.
Cook ground round and onion in a large skillet, stirring until beef crumbles and is no longer pink; drain meat, and return to skillet.
Spoon half of meat mixture into a lightly greased 5-qt. slow cooker. Top with spaghetti. Spoon remaining half of meat mixture over top.
Combine pasta sauce, diced tomatoes, 1/2 cup water, and Italian seasoning. Pour mixture over meat, and sprinkle with Cheddar cheese.
Cover and cook on Low 4 hours. Let stand 10 minutes before serving. Serve with Parmesan cheese.
Note: We tested with McCormick Perfect Pinch Italian Seasoning.
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