Beef is easily prepared in the oven, on the grill or in a crock pot. Crock pots make for fast preparation of a beef round sirloin tip roast. This roast is less tender than top sirloin or loin roast, but the long, slow cooking in a crock pot tenderises this cut of beef.
Lightly brown the beef round sirloin tip roast in a medium hot frying pan after trimming any fat from the roast. Brown all sides by turning the roast.
Place the browned roast in the crock pot. Turn crock pot on the "low" setting.
Chop the onion into 1.2 cm (1/2 inch) pieces. Arrange onions pieces around the roast in the crock pot.
Add the onion soup mix to 237 ml (1 cup) of warm water. Stir together until dissolved and pour over the roast in the crock pot.
Cover the crock pot and cook the sirloin tip roast seven to eight hours on low heat. Remove the roast and place on a platter for 15 minutes before slicing. Slice and serve on a platter with the cooked onion pieces. Serve the onion soup juice in a gravy boast with the roast.
A can of sliced mushrooms can be added with the onions if desired.