How Long to Cook Quiche at 350 or 375 Degrees
For the best results, cook quiche at 375 degrees for 35 minutes. Make sure to check on the quiche at the 25-minute mark; if the crust is getting too brown, cover it with foil for the remaining cook time. You can also bake quiche at 350 degrees if you prefer, in which case you'll want to cook it for 40 to 50 minutes total. To test for doneness, insert a butter knife in the center; if it comes out clean, the quiche is done.