Final answer:
Without personal or contextual information about Nico's preferences, it is not possible to determine which of the vegetables/ fruits at Inge's Nico likes best.
Step-by-step explanation:
The question "Which of the vegetables/ fruits at Inge's does Nico like best?" suggests a preference that Nico has among a selection of vegetables and fruits available at Inge's. Among the options provided are various vegetables such as green beans, cauliflower, zucchini (courgette), celery, and nopal. Additionally, some fruits mentioned include avocado and unripe bananas, as well as the skins of particular fruits like kiwifruit, grapes, and tomatoes. To answer this question, it would require personal or contextual information about Nico's preferences which is not provided here. Therefore, it is not possible to accurately determine which of the vegetables/ fruits at Inge's Nico likes best without that specific information.