Slice the mushrooms, green onion, water chestnuts, baby bok choy and broccoli.
Heat 1 TBSP of brown rice vinegar in a large saucepan over medium heat. Add the broccoli and cook for 3 minutes.
Add another TBSP of brown rice vinegar and the sesame oil to the pan. Stir in the remaining veggies.
Using your hands, crumble the tofu block up. Add to the pan, and season with crushed red pepper. Cook for 5 minutes, stirring a few times.
Add another TBSP of soy sauce, and stir the brown rice in. Evenly combine the mixture.
Divide into 4 bowls. Sprinkle each with 1 TSP of sesame seeds and a drizzle of sesame oil into each bowl, and serve immediately.