Season lamb with salt and pepper. Heat oil in a large deep skillet or Dutch oven. Add the lamb and cook, turning from time to time, until browned on all sides, about 6 minutes. Transfer to a plate.dd carrot and onion to the pan; cook, stirring often, until lightly browned, about 3 minutes. Sprinkle flour over the vegetables; stir to coat. Add wine and scrape up any browned bits. Simmer until reduced slightly, 2 to 3 minutes.dd broth, tomatoes, garlic and rosemary; bring to a simmer. Return the lamb to the pan. Reduce heat to low, cover and simmer for 1 1/4 hours, checking from time to time to make sure it does not boil too rapidly.
Stir in pearl onions, turnips and carrots. Simmer, covered, until the lamb and vegetables are tender, about 30 minutes. dd peas and heat through. Sprinkle with parsley and serve.