Will be spending a few nights in Goteborg beginning the end of next week and interested to hear what others may have to suggest? Open to all types of food; wine/drink list not important.
I realise that this post is a few weeks old and you have probably already visited Gothenburg but in case you return or someone else is interested, here goes:
The best (also most fancy) restaurants in Gothenburg are "Sjömagasinet" (www.sjomagasinet.se, fantastic seafood), "Kock & Vin" (www.kockvin.se)and "28+" (www.28plus.se). You really can't go wrong with any of these, I would suggest one of two first mentioned.
Note that these are quite expensive but they are also the best in Gothenburg, I will leave it up to someone else to provide suggestion on "simpler" restaurants.