Heat one teaspoon of oil in a large skillet over medium heat
Cook the onion until it’s translucent and slightly browned, about 5 minutes
Crumble the tofu and add it the pan along with the nutritional yeast, chilli powder, cumin, onion powder, garlic powder, salt, pepper, turmeric, and cayenne, and mix everything together.
Let cook for a minute or two and then add the chopped pepper.
Cook until the peppers are soft, about 5 more minutes.
Remove the tofu scramble from the skillet and wipe it clean.
Place one of the tortillas in the bottom of the pan and then sprinkle 2 tablespoons of the cheese on top of it. Evenly place ¼ of the tofu mixture on the tortilla, and then more cheese and place another tortilla on top.
Press down with a spatula. Cook for about 2 mins on each side until browned and melty
Remove the quesadilla from the pan and cover it to keep it warm. Repeat with the remaining tortillas
Cut each quesadilla into four pieces, and serve hot with guac