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.

Heat 1 tsp of the olive oil in a small skillet on medium heat. Saute onion 3 mins, until tender. Combine onion with ground beef, parsley, egg, tomato sauce and Worcestershire sauce in a bowl; season and mix well. Shape into 4 patties., Heat a grill pan or large skillet on high heat. Brush with remaining oil. Cook patties 3-4 mins each side, until cooked through., Serve burgers on rolls with lettuce, tomatoes, beets, cheese, chutney and additional tomato sauce.
olive oil, onion, ground beef, parsley, egg, tomato sauce, Worcestershire sauce, hamburger rolls, tomatoes