Here is a relatively quick meal to prepare and quite flavorful. What you will need:
1 package of firm or extra firm tofu, cut into 1 inch cubes
10 sweet, mini peppers, sliced into rings
6 ounces fresh green beans, cut into 1-2 inch pieces
1 yellow onion, cut into slices, then in half
1 tablespoon of olive oil
1/4 cup of spicy or original yakitori sauce
After slicing and prep of the ingredients listed above, heat 1 tablespoon of olive oil in a large skillet over medium heat and add onions. Stir for about 5 minutes, then add green beans, stirring occasionally for about 7-8 minutes more, onions should just be starting to get a little brown on the edges. Add peppers and stir for 3 minutes more, then add tofu. Stir entire mixture for another 5 minutes, breaking tofu slightly, then add yakitori sauce for a final 3-4 minutes and serve.