Shepherds pie

This was my first go at an old recipe. I've never eaten Shepherd's pie, but I've seen it. I know it usually has peas and is made from lamb. This was not traditional, but was extremely tasty. My hubby informed me that it's usually also made with cubed meat and has more gravy. If you like it that way, adjust the broth and flour amount and use cubed meat.Shepherd's Pie
Makes one pie (4 large servings)
Ingredients:
5 medium potatoes, peeled and cubed
2 tbsp oil
1 lb. lean ground beef
1 carrot, sliced thick
1 celery stalk, sliced thick
4 large shallots, chopped
4 oz. button mushrooms, chopped
1 tsp dried thyme
1 tsp dried rosemary
3 tbsp butter
1 tbsp flour
3/4 cup beef or vegetable broth
salt and pepper to taste

Directions:
Bring medium pot of salted water to a boil. Add potatoes and boil until tender, about 15 minutes. Drain, reserving about 1/2 to 1 cup water. Add 1 tbsp butter and adding back cooking water, mash until smooth. Whip with a spoon until light and fluffy. Salt and pepper to taste

Preheat oven to 400. Heat oil in a large skillet over medium heat. Add carrot, celery, shallots, thyme, rosemary and a pinch of salt. Cook 10 minutes. Add ground beef and mushrooms and saute until beef is cooked through, about 10 minutes. Break up any chunks and salt and pepper to taste. Add flour and stir well to combine. Cook another 2 minutes. Add broth and cook until thickened, another minute or 2.

Dump meat and vegetable mixture into a 9 inch pie plate and level. Pile mashed potatoes on and smooth to edges with a spoon. Using a fork, create fun little ridges with the potatoes. Break up 2 tbsp butter and spread evenly over top. Bake in oven 30 minutes. Broil until potatoes are lightly browned, about 3 minutes.