Email to lisa mailman Recipe Categories: lisasrecipes's HOME PAGEBEVERAGES BREAD BREAKFAST CAKESandPIES CASSEROLES COOKIES CROCKPOT DESSERTS MEATS PASTA PIZZA SOUPSandSTEWS VEGETABLES Tangy Roast Beef Source of Recipe . List of Ingredients 3-4 lb. boneless rump roast 1 pkg. Lipton's Onion Soup mix 1 15 oz. can jellied cranberry sauce Recipe Sprinkle the onion soup mix in bottom of crockpot. Place roast on top of soup mix. Spoon cranberry sauce on top, and around the roast. Cook on low 8-10 hrs.