When roasting beef tenderloin in the oven, do you put the meat straight into the oven or do you like to sear it on all sides first to give it a nice browning and to seal in the juices? Is there a noticeable difference in taste/texture between the methods?
I always sear mine first in a cast iron skillet. Locks in the juices and provides a more appealing crust/look for the final product. To me, it improves the texture as well.
I use the Barefoot Contessa method of rubbing plenty of butter all over the tenderloin and then putting it into a very clean 500 degree oven until it hits 125 inside. It really comes out perfect and it's easy. No splatters, no messy stovetop, you just put it in there when your guests come in, using a thermometer with an alarm. It beeps, you let it rest and you’re done. Just be sure the oven is clean or at that temperature, you may get smoke.
Sear. If the Barefoot Contessa is doing hers at 500 degrees than technically she is searing it. It's the same when roasting a whole chicken. If you put it in at 450-500 for 5 minutes than turning it down to 350 to finish cooking it does sear.
If "searing" to lock in the juices really worked then I would hollow out a seared tender, throw away my cache of ziplocs and use the crust to store stocks and soups.