If-Shepherds-Had-Sweet-Potatoes Pie

1 frozen pie crust
1 large sweet potato
2 tbsp butter
1/2 tsp salt
1 lb ground beef
2 carrots, peeled and diced
1 parsnip, peeled and diced
1 small onion, diced
3 slices bacon, chopped
2 tbsp Worcestershire sauce
1 can (8 oz) low-sodium tomato sauce

1. Bake pie crust according to package directions.
2. Prick the sweet potato several times with a fork.
3. Bake the sweet potato at 350° for 45-55 minutes.
   
4. When the potato is cool enough to handle, peel.
5. Add butter and salt, and mash.
6. Spread half the mashed sweet potatoes in the pie crust, and set aside.
7. Brown beef and remove from pan.
8. Add carrots and parsnips to the pan and saute for 5 minutes.
9. Add bacon and onions. Saute until onions are translucent.
10. Add beef and Worcestershire sauce and bring up to heat.
11. Add tomato sauce, and bring up to heat.
12. Place meat mixture on top of the sweet potato layer.
13. Top with the remaining sweet potatoes.
14. Bake at 350° for 40 minutes, or until the potatoes are browned.

This was a hit at a recent pie potluck.