Grab your pie dish.Unroll and lay your pie crust in the dish. Cut the excess of the edges with a paring knife.Put two layers of foil over the pie crust and bake at 450 degrees for five minutes.Take the foil off and bake for an additional five minutes.Let the pie crust cool for atleast 20 minutes.Fill the pie crust with the bacon, onion and cheese.Mix the remaining ingredients and pour over the pie dish.Carefully transfer to an oven preheated to 375 degrees, noting that you'll need to turn the temp down after baking the pie crust.Bake for 40-45 minutes or until a toothpick comes out clean.The quiche will still jiggle a little, but once the toothpick comes out clean, it's good to sit and set up.Let sit for ten minutes after baking and cut in pie pieces.