1. Heat a large pot over medium heat and add a bit of oil.
2. Brown the lamb chunks on all sides, then remove and set aside.
3. In the same pot, add the onion, garlic, carrots, parsnips, and celery. Cook until softened.
4. Stir in the tomato paste, thyme, rosemary, salt, and pepper.
5. Return the lamb to the pot and pour in the beef broth. Bring to a boil.
6. Reduce heat to low, cover, and let simmer for about 2 hours, or until the lamb is tender.
7. Serve hot and enjoy!