All in one beef 'pot roast' (slow cooker)

Tender juicy beef, vegetables, potatoes and a gorgeously comforting onion gravy, what could be better?

We start with 1kg of lean beef (use what you can afford! it doesn't actually have to be a joint or anything!)
3 large onions sliced thinly
(i use chesnut mushrooms in mine too, usually about 6-7 sliced thin but i saute them in a frying pan with some low cal spray before adding them to the slow cooker! just put them under the beef with the onions)
1 bay leaf
1tbsp cornflour (1syn)
4 large carrots chunked up
4 potatoes chunked up
generous pinch of dry thyme and rosemary.
200ml beef broth
1 bay leaf
generous pinch of salt and pepper.

lay the onions in the bottom of the slow cooker and place the beef on top.
mix the beef broth with the cornflour, bay leaf, rosemary, thyme, salt and pepper and pour over the beef and onion. put the carrots and potatoes on top.
cover and cook for 6 hours on high or 8 on low.
i usually just boil some broccoli and green beans to go with it but i dont see why you couldnt also add that to the slow cooker!

I hope you like this dish i would love some feed back!