Prepare mashed potatoes
Preheat oven 400℉
Heat in cast iron skillet
3 tbsp vegetable oil
Add
1 yellow onion, chopped
1 carrot, chopped
1 celery rib, chopped
Cook until soft but not brown, approximately 10 minutes
Add
1 lb ground lamb or beef
Cook until brown
Skim off excess fat
Add
1 tbsp flour
Cook stirring for 2 minutes
Add
¾ cup chicken or beef broth
½ tsp dried thyme
½ tsp dried rosemary
Pinch of nutmeg
Add salt and pepper to taste
Reduce heat
Cook 5 minutes until mixture thickens
Add mashed potatoes to top
Use fork to make peaks in the potatoes
Bake for 35 minutes