Mmmmm...tempeh! I use it a lot. Some of my favorite things: I throw it in to a skillet with diced potatoes and whatever other veggies I have around (tomato, kale, certainly onions and garlic). Tempeh bacon! Slice the tempeh as thin as you can get it. Marinade in a mixture of soy sauce, white or wine vinegar, a little brown sugar or molasses, a dash of Worcestershire sauce, and garlic and/or onion powder. I usually try to let it sit for a day or overnight, then bake at around 250°F until it's as crispy as I like it (remember to flip!). It takes a long time, but it's awesome! I also just marinade in any kind of sauce (especially bbq!) and toss it on the grill/skillet/oven until it's heated through.