Prepare udon noodles according to package directions, then drain and set aside.
Bring broth, garlic, ginger, soy sauce, sesame oil and sugar to a boil for one minute and reduce heat to a simmer.
Add tofu, broccoli, carrots, spinach, mushrooms and cook for three minutes or until broccoli is tender. (My broccoli took longer to become tender)
Divide Udon between four bowls with a pinch of sesame seeds on top.
Optional protein: Feel free to add a protein like thinly sliced fish or a runny fried egg on top.
Optional: Top with Sriracha, hoisin sauce, lime juice, or whatever flavors you like!