Defrost the peas. Wash the meat and cut into fine slices. Clean and wash spring onions, cut into bite-sized pieces. Wash and chop the thyme. Fry undefrosted hash browns in 3 tablespoons of hot oil for about 10 minutes, turning them over. In the meantime, heat the remaining oil in another pan. Fry the meat for 2 minutes at high heat.
Season with salt, pepper and sherry. Add spring onions, peas and thyme and fry briefly. Deglaze with stock and cream, bring to the boil. Sprinkle in sauce thickener. Bring to the boil again and season if necessary. Serve the shredded meat and hash browns in portions. Serve garnished with parsley