Preheat oven to 300°. Combine beef, French Onion Dip Mix, mushrooms, water, salt & pepper. Spoon the soup on top of mixture. You may add potatoes and carrots if desired. Place into a 13x9-inch baking dish. Cover tightly with foil and bake for 4 hours.
Do NOT Peek! May also be cooked in a slow-cooker / Crock-Pot®. Serve over noodles. Serves 8. To double recipe, increase the baking time by 1 hour.
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