INGREDIENTS
•
3/4poundlinguine
•
4tablespoons(1/2 stick) unsalted butter, cut into pieces
•
2leeks, white and light green parts only, halved and sliced
•
kosher salt and black pepper
•
2cupsshredded rotisserie chicken (from 1/2 of a chicken), warm
•
3tablespoonsDijon mustard
•
1romaine heart, thinly sliced
•
2tablespoonschopped tarragon