Cut tofu into cubes, about 1/2 inch in size.
Heat the oil in a non-stick skillet, over medium-high heat.
Add tofu, saute until a golden crust forms on all sides.
Turn the heat down to low.
Sprinkle tofu with nutritional yeast, stirring to coat evenly.
Shake tamari over the coated tofu, stirring to coat evenly
Tasty just as it is or with catsup!