Pesto-Rolled Beef Tenderloin with Roasted Pepper Rouille

Tenderloin may be the tenderest cut of beef, but it is also the blandest. It needs help from a rich sauce, a fragrant rub, or (as in this recipe) a stuffing of grilled vegetables and a crust of aromatic pesto. If you need to prepare it in advance, you can stuff it and wrap it (steps 1 through 7) and refrigerate it for several hours before grilling. It’s even great cold if you want to make the whole thing the day before.