Preheat your oven to 375 degrees.
Roll out the pie crust and fit it into a 9-inch pie plate.
In a large skillet over medium-high heat, cook the bacon until crisp. Transfer it to a paper towel-lined plate and remove the grease from the pan.
In the same large skillet over medium-high heat, cook the sausage until no pink remains. Transfer to the same plate with bacon to drain excess grease and remove all but about 1/2 tablespoon of grease from the pan.
In the sausage grease, over medium heat, saute the green onion and bell pepper until softened.
Place the sausage, bacon, and cooked diced ham into the pie shell, then top with the onion and pepper. Sprinkle the cheese over it evenly.
In a large bowl, whisk eggs, half and half, garlic powder, onion powder, salt and pepper.
Pour egg mixture into the pie crust, over the meat mixture.
Bake for 35-45 minutes or until the quiche is set and golden.
Let the quiche cool for 10 minutes before slicing and serving.