Gently press the pie crust dough into a 9" pie plate and pinch the edges. Set aside.
Brown sausage in a large skillet, then drain any excess grease from the pan. Add the onions and cook until tender and translucent.
Transfer the sausage and onions to the prepared pie plate, then sprinkle the shredded cheddar cheese evenly over the top.
In a separate bowl, whisk together the eggs, cream, mustard powder, salt, and pepper. Pour over the cheese and sausage mixture.
Bake on the center rack of a preheated 350 ℉ oven for 40 to 50 minutes, until the crust is golden and the filling is set.* Allow to rest for 10 minutes before serving.*Tent loosely with foil if crust begins to brown before quiche is finished cooking.
Notes
Add other meats and veg to bulk it up or play with the flavors.
Tent the crust with tinfoil halfway through baking to ensure the crust does not get too brown.
A 9’’ pie plate works best for this recipe.
Use spicy sausage to give this dish a kick of heat!
Swap half and half for the heavy whipping cream if desired.
Calories are automatically generated. For best results calculate based on your exact ingredients.