In this task, you have to identify the named entities (NER) which are the ingredients required given its directions. Named entities are the names of the items without their quantity.
Q: Preheat oven to 400., Combine oil, thyme, salt, pepper, and radicchio on a rimmed baking sheet; toss to coat. Bake at 400 for 20 minutes or until wilted and slightly charred., Cook pancetta in a large skillet over medium heat 10 minutes or until browned and crisp, turning occasionally. Remove pancetta from pan; coarsely crumble. Add shallot to pan; cook 3 minutes or until lightly browned. Arrange radicchio on a platter. Sprinkle pancetta, shallot, and walnuts over radicchio. Drizzle with vinegar and honey. Garnish with thyme sprigs, if desired.
A:
extra-virgin olive oil, thyme, kosher salt, freshly ground black pepper, heads radicchio, pancetta, shallot, walnuts, balsamic vinegar, honey, Thyme