Cut lamb into cubes approximately 4cm thick. Season flour with black pepper and roll lamb in flour. Set the pressure cooker express to sauté and heat oil in pan. Add lamb and garlic and brown on all sides. Stir through eschallots, and garlic and cook for a few minutes. Add beans, carrots and stock. Cover the pan and lock the lid. Ensure the pressure valve is sealed. Turn the timer to setting 3. Once cooked, allow about a few minutes before releasing the valve. Open lid once all the steam has released. Serve with fresh steamed green beans and crunchy sourdough bread.