Prep time: 30 minutes +/-
Cook time: 30-45 minutes @ 400*F
Yields: 1 casserole dish
Preheat your oven to 400*F and set aside a large, glass casserole dish.
Cook ground lamb in a skillet, breaking it apart so it forms ground meat. When lamb is 3/4 cooked, add garlic, onion and green pepper. Saute.
While lamb is cooking, chop up sweet potatoes and bring them to a boil in a large pot of water. Cook until you can easily skewer potatoes with a fork.
Add Guinness, Worcestershire sauce, and carrots to the lamb and simmer with rosemary, salt and pepper (which were added to taste) for about 15-20 minutes. Add jalapenos and simmer for 5 more minutes.
Pour lamb mixture into a large glass casserole dish, evenly distributing it.
Drain the water from the sweet potatoes and return them to the pot. Add the butter and brown sugar and mash. Spread the mashed sweet potatoes evenly over the lamb mixture in the casserole dish.
Place the dish in the oven and cook for 30-45 minutes until mashed potatoes have browned.