I'm not sure why, or when it started, but we have a tradition in my house of having tempeh fajitas on Friday nights. This tasty meal has also improved since aquiring a cast iron skillet! It's an easy, vegetarian and vegan option when you don't want to cook much. I just brown the tempeh and then set it aside while I cook saute the onions, peppers and tomatoes. I add the tempeh back in and then add some seasoning (usually salt, paprika, garlic salt and cayenne pepper). Serve it with tortillas and any toppings you want!