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: Pound chicken with a meat mallet to 1/2-in. thickness. In a large skillet, heat oil and butter over medium heat. Cook chicken 5-6 minutes on each side or until no longer pink. Remove and keep warm., Add spinach and salsa to pan; cook and stir 3-4 minutes or just until spinach is wilted. Serve with chicken.
A:
chicken breast halves, olive oil, butter, baby spinach, salsa