Remove visible fat from the beef, cut into roughly 1-inch cubes
Place beef in your deep pot or slow cooker with the olive oil, saute beef on medium heat until it is dark brown and nearly all of the fat liquid has cooked off, usually 15 to 20 min
While beef is cooking, wash, peel, and cut carrots into 2-inch pieces
Wash and cut potatoes into 2-inch pieces, with or without removing the skin depending on your preference
Add the 3 cans of tomato soup to the pot or slow cooker, fill each can to about 3/4 full with water and add to the pot or slow cooker
Add the Gravymaster
Bring to a boil, then lower to low heat with lid fully or partially on to prevent splattering and cook for 90 minutes to 2 hours, still every 5-10 minutes to prevent sticking to the pot