Tempeh's a bit of a funny one, it can have a bit of a weird sour taste. I find you either have to overwhelm it with stronger flavours or just use it for stuff that a sour flavour works well with.
it's great in a satay type situation with loads of lime, ginger, garlic, chilli, light soy sauce and peanut butter. I prefer the texture it when it's got a bit of a char on it as well so tend to blast it in the frying pan at full whack for a couple of minutes to start with.
Tempeh's a bit of a funny one, it can have a bit of a weird sour taste. I find you either have to overwhelm it with stronger flavours or just use it for stuff that a sour flavour works well with.