Heat up a tablespoon of oil in a pan. Place the tofu in one layer and cook for 10-15 minutes, or until tofu are browned on most sides, giving it a toss every 4-5 minutes. Set aside.
In the meantime, make the stir-fry sauce by combining everything needed and mix well.
In the same pan, add in some more oil and saute the garlic until fragrant. Then, add in the broccoli and cook until they are half-cooked, about 3-5 minutes.
Toss in the mushrooms and cook until the veggies have softened, stirring frequently.
Add in the tofu and half of the stir-fry sauce. Mix until everything is thoroughly incorporated.
Give it a taste and add more sauce, if needed. Serve and enjoy !