Season the beef with salt and ground pepper.In a large casserole dish, placed over a high heat with a little oil, caramelise the beef - you may need to do it in batches to avoid over-crowding. Once the beef has been browned add the onions and garlic and sweat down for about 10 minutes.Add the rosemary and bay leaves, then the beed stock and umami paste, stir in, then place into the oven at 140C for approx 1.5 hours.
After 1.5 hours, take the dish out of the oven and add the Carlin peas to the casserole (you may want to top up with a little more stock or water) and any extra vegetables such as leeks.Cook for another 30 minutes on the stove top on a medium-low heat, or until the peas are just tender.