Dice your vegetables - onion, cabbage and zucchini into small pieces. Cut up your tofu into small cubes.
Add tofu to a pan with olive oil and fry until golden brown and crispy. You can also do this in an air fryer. Air fry at 200°C for 10 minutes, shaking the basket or flipping the tofu halfway through to ensure even crisping.
Add soy sauce, rice wine vinegar, and minced ginger. Saute the tofu together. Push them aside.
Add sesame oil to the other half of the pan. Add white onion and saute. Mix all ingredients together, add zucchini, shitake mushrooms, and lastly cabbage. Saute for 3-4 minutes until half cooked.
Add in black bean paste, vegan oyster sauce, sweetener, mix well and add a cup of water. Bring to a boil.
Add your corn starch slurry and let the sauce thicken.
Meanwhile, cook your noodles according to packaging instructions and drain excess water. Rinse your noodles in water to separate them.
Serve the noodles, alongside the sauce and garnish with julienned cucumber and toasted sesame seeds on top!