If your okra is slimy, you're doing it wrong. You've gotta cut it into pieces, toss it with corn flour, and cook in butter/oil. It becomes really healthy at that point too! Jk, but it tastes awesome with some garlic salt added!
Also, the "queen" of fruits, the mangosteen, has many sisters (garcinia's) that are also supposed to taste pretty amazing! The only other one I've tried so far is lemon drop mangosteen. Very delicious! A little tarter than purple mangosteen and grows much faster. (fruits at a very young age and size) I'm sure there are even some northerners growing it in pots.