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Marinade for tofu, which includes the amounts you prefer of:
Dice the onion and pepper into small pieces, or whatever size you prefer. Chop up the tomatoes in the same way, but I'd leave these pieces a little bigger.
Dump the tofu, marinade and all, into a skillet. Add the onion and pepper and tomato.
If you want, you can add some meat substitutes at this point, like chicken substitute or beef substitute. I added some crumbled up garden burger one day and it turned out pretty good. I've also seen some "fajita chicken" substitute but I haven't tried that yet.
Add the vegetable broth for some liquid, otherwise the food will scorch. If you feel like you need to, you can add a little more. Let the vegetable broth completely or almost completly boil off, stirring the stuff around a little to keep the food from sticking.
This is a good mix to stuff into corn tortillas, or just to stuff between two slices of bread. It goes good with soy cheese too. :)
posted by Rubystars