This incredibly flavorful Roasted Pork Tenderloin is absurdly simple to make and filled with mustardy and garlicky flavors! The best part is all the glorious juices from the pork act as a sauce for the veggies creating one uber flavorful one pan meal! This is one holiday meal that most certainly will impress everyone and tire no one! Plus learn the ultimate trick to getting a gorgeously browned tenderloin in only 30 minutes!