One of the easiest ways to cook tempeh and give any dish a boost of protein is to add crumbled tempeh. Just take it out of the package and either use your fingers to make larger-sized crumbles or pulse it in a food processor to get smaller crumbles.
Add the crumbles to tomato sauce to make a vegan bolognese, add them to chili or other hearty soups, or use them in place of ground beef for tacos.