I came across this online and realised I make this!!!!

Beef in Mushroom Gravy

2 to 2 1/2 pounds boneless beef round steak
1 to 2 envelopes dry onion soup mix
1 can (10 3/4 oz.) condensed cream of mushroom soup
1/2 cup water

Cut steak into six serving pieces; place in a 4 to 6 qt. electric slow cooker. Combine soup mix, mushroom soup and water; pour over beef. Cover and cook on low heat setting for 7-8 hours or until the meat is tender. Serve with noodles or rice.