you prefer a bit more body to the sauce, stir in 2 tablespoons of sour cream or plain Greek yogurt at the end of baking for extra tang and creaminess—just fold it in gently so it doesn’t curdle. To make this in a slow cooker instead of the oven, layer the raw beef in the bottom of the crock, pour the same soup mixture over the top, cover, and cook on LOW for 7 to 8 hours or HIGH for about 4 hours, until the beef is tender.
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