Ice cream this one is katakana I believe アイス
- verb to like - don't know the verb, but I use the noun/adjective すき
- verb to love - I would use, あしている
- chocolate I use katakana for this one too チョコレート
- fruit - くだもの
- vegan - I don't now the noun for this one, sorry, but vegetable is やさい。So I would say, やさいだけ食べる人、if I personally had to. Maybe someone else would know though.
- food たべもの