Mix bibimbap sauce ingredients until combined. Leave to side.
Prepare veggies - slice up carrots, zucchini and shiitake mushrooms. Cut tofu into 1” cubes.
Bring a small pot of water to boil. Add in bean sprouts to boil for 2 minutes, then drain and toss with with 1 teaspoon sesame oil, 1/2 teaspoon fish sauce and 1/4 teaspoon brown sugar.
Preheat a skillet with sesame oil to medium heat. Add garlic to sauté for 10 seconds, then add in zucchini to cook until softened, about 2 minutes. Remove and leave to side.
Add more sesame oil and carrots until softened, about 1 minute. Add salt to taste. Remove from pan.
Add more sesame oil to pan. Add in baby spinach with soy sauce to cook for 30 second until wilted. Remove & leave to side.
Add more sesame oil to pan, add shiitake mushrooms to cook with 1/2 teaspoon soy sauce, 1/2 fish sauce and 1 minced garlic.
Fry egg in pan and cook tofu cubes with sesame oil.
Assemble with a bed of rice, adding veggies, tofu and fried egg on top. Sprinkle with sesame seeds, drizzle with sesame oil and bibimbap sauce on top!