1 pie crust, baked*
Bake pie shell according to package directions. Sprinkle green onions, olives and Jack cheese in baked pie shell. Top with tomatoes. Whisk together eggs, Cheddar cheese, and half 'n' half. Pour over vegetables. Bake at 375-degrees for 30 minutes. Let stand 30 minutes and sprinkle with parsley.
* I use Pillsbury pie crusts in the red box from the refrigerated section of the grocery store.