Pot Luck went well

I think the pot luck I had Friday night went well. I made the Spanakopita and one of my guests ate about 5 slices. I put too much onion in it. I think I was having fun chopping the onion and I went a little crazy. I also made heath bar cookies which also went over well. I need a better apartment with more tables to put food on.
I'm trying to think of a theme for my next party. I'm thinking a Hawaiian theme since it will be the middle of winter and we will all need a tropical boost. Any suggestions for recipes with pineapple?