Layer pot roast, onion, celery, carrots, and potatoes in roaster. Sprinkle seasoning and tapioca over this. Add tomato soup to this with 1/3 soup can water. Cover the roaster with lid and cook in oven at 250 degrees F for 5 hours. Do not lift lid while cooking! This makes its oven gravy. Do not brown meat before layering in roaster.
By Robin from Washington, IA
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