|Freshly ground pepper||1 Teaspoon, divided|
|Mozzarella cheese||8 Ounce, shredded (1 Package)|
|Chopped pecans/Walnuts||1⁄4 Cup (4 tbs)|
|Heavy cream||1 Cup (16 tbs)|
|9 inch pie crust||1 (Unbaked)|
Preheat oven to 350°.
Slice onions into 1/4-inch thick rings.
Steam onions, rings intact, for 5 minutes.
Place 1/2 of the steamed onions in the bottom of casserole dish keeping rings intact.
Sprinkle 1/2 teaspoon pepper over onions.
Layer 1/2 of the cheese over onions, nuts.
Layer remaining onions and then the cheese.
Sprinkle 1/2 teaspoon pepper over layers the heavy cream.
Cover top of the dish with pie crust forming a rim around the edge.
Just before baking, beat egg yolk and water together and brush over pie crust.
Bake for 30-40 minutes.