Chop the 3 cups of cabbage, 1 cup of purple onion, 2 cups of soft tofu, 1 cup of brown mushroom, and 1 whole red chili pepper.
Preheat a large deep frying pan to a medium/high heat, and put in the 4 tbsp of olive oil and red chili pepper.
When the frying pan is nice and hot, put in the 2 cups of green beans, cabbage, purple onion, soft tofu, and brown mushroom. Cook and stir regularly for about 10 minutes.
Add in the 3 tbsp of lemon juice and 2 tbsp of soy sauce and continue cooking for 1 more minute while stirring regularly.
Once the vegetables are tender it is ready! Enjoy over rice or straight out of the pan!