Preheat oven to 375 F. Grease a 9 inch pie dish and set aside.

In a sauce pan over medium-high heat, melt butter and saute onion until onions are soft, about 5 minutes.

Whisk in the flour to form a roux. Whisk in beef stock until thoroughly incorporated. Whisk in the half and half and stir well.

Slowly add in the cheese and stir until well blended. Add in all seasonings and salt and pepper to taste. Pour the veggies and ham into the pan and stir just until combined.

Place the bottom of your prepared crust into the greased pie dish. Pour ham filling in. Place the top crust on and seal edges. Using a fork, poke holes in top.

Brush with an egg wash. Bake about 45 minutes until the crust is nice and golden brown.