Cook the udon noodles according to their package instructions, and reserve 1/3 cup of the water before straining. Make sure not to overcook these otherwise they’re not nearly as good. Set aside.
Put the oil in a skillet on medium heat and add the tofu, salt, and pepper. Saute the tofu until it's golden brown, about 4 minutes, then flip and repeat. Set aside.
Add another tablespoon of oil, the minced garlic and the bok choy to the skillet. Cook for about two minutes, just until they start to become bright green. Add the scallions, red pepper flakes, the last tablespoon of oil, soy sauce, and sugar. Also pour in the 1/3 cup of water. Heat and stir to create a broth.
Serve up four bowls of noodles, broth, veggies, and tofu and enjoy. Seriously. Enjoy it.