Shepherd's Pie

Directions

1. 1
   Preheat oven to 375F.
2. 2
   Heat oil in heavy large skillet over medium-high heat.
3. 3
   Add mushrooms and onion and saute until mushrooms are brown, about 8 minutes.
4. 4
   Using slotted spoon, transfer mushroom mixture to bowl.
5. 5
   Add lamb and garlic to same skillet.
6. 6
   Saute over medium-high heat until lamb is no longer pink, about 5 minutes.
7. 7
   Return mushroom mixture to skillet.
8. 8
   Mix in gravy seasoning and 1 1/2 cups water.
9. 9
   Reduce heat and simmer until mixture thickens, stirring occasionally, about 5 minutes.
10. 10
    Add peas; simmer until just tender, about 5 minutes longer.
11. 11
    Mix in 3 tablespoons parsley; season generously with freshly ground black pepper.
12. 12
    Transfer lamb mixture to 13x9x2-inch glass baking dish.
13. 13
    Spoon Buttery Mashed Potatoes over, covering completely.
14. 14
    Bake pie until heated through, about 15 minutes.
15. 15
    Sprinkle with remaining 1 tablespoon parsley.