Preheat oven to 375 degrees.
In a large bowl, combine all pie ingredients. Mix well. Season with salt and pepper.
Spread into a thawed pie crust on top of a baking sheet.
Bake uncovered at 375 degrees for 20 minutes.
After 20 minutes, remove from the oven and sprinkle 1/2 cup cheese over the pie.
Bake 5-10 minutes more until the cheese is melted and the crust is golden brown.
Take out of the oven and let the pie rest for a few minutes before cutting.
Slice and serve warm.