Roll out your pie crust and place it in a pie pan. Crimp the edges. If you have the time, chill it for 30 minutes.
Use a fork to prick holes over the inside of the crust. Line with foil or parchment paper and fill with pie weights or dry beans.
Place the crust in the oven to pre-bake for 15 minutes or until lightly golden brown. Set aside to cool.
To make the filling for your quiche:
Cook bacon according to package instructions. Remove the bacon to paper towels to drain and pour off most of the grease, reserving about 1 Tablespoon.
Add the onion, red pepper, and mushrooms to the grease in the pan. Cook until everything is softened and the onion becomes translucent.
Chop the bacon and return to the pan and mix it into the sauteed veggies.
Spoon the bacon & veggie mixture into the bottom of your pre-baked pie crust. Spread evenly.
In a large bowl, whisk the eggs, cream, salt, and pepper together.
Spread the shredded cheese in an even layer over the bacon & veggie mixture, then pour the egg & cream mixture over top.
To bake your quiche:
Heat your oven to 350°F.
Place the quiche into the oven and bake for 45-55 minutes or until the center is completely set and the top of the quiche is lightly golden browned. Cover the edges of the crust with a pie shield or aluminum foil if the pastry starts getting too dark.
Slice and serve warm or cool before serving.
Notes
If needed, when baking the filled quiche, use a pie crust shield again or tent with aluminum foil for the final 10-15 minutes of baking to avoid burned pie crust edges.
You can use half & half in place of heavy cream if desired.
Your quiche will keep for up to 3 days in the fridge if covered tightly.
Serve warm, room temp, or even cold! Quiche is delicious at any temperature.