Roll out your pie crust and place it in a pie pan. Crimp the edges.
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 25 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 using store bought pie crust, increase the oven temperature to 375°F before pre-baking, and reduce the baking time to 12-15 minutes.
If you prefer to make your crust from scratch, combine 2 cups flour and ½ teaspoon salt in a large bowl. Cut in ⅔ cup cold butter and mix until crumbly. Add 6-7 tablespoons ice water and mix with your hands until a ball of dough starts to form and separates from the sides of the bowl. Roll out on a floured surface, then bake as directed in the recipe.
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.
Optional: garnish with sliced green onions or chopped chives before serving.
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.