Given the task definition and input, reply with output. 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 vegetable mixture as directed on package., Add tuna and stir lightly., Microwave on High, uncovered, 45 to 60 seconds or until heated through., Makes about 1 serving, 240 calories.
potatoes, water