When along Shaw Boulevard, pass by and try Moshi Koshi Noodle Boss. Its a modern Japanese diner which specializes on koshi noodles, a term used to refer to the "chewiness" property of freshly prepared Japanese noodles. The udon is the specialty although I also love the soba. They serve zaru soba (cold soba) even though it is officially not in the menu.
Moshi Koshi also serves toppings (donburi) and salads. No sushi or sashimi on the menu. Pricing is affordable (mostly below PHP200). Moshi Koshi is the brainchild of one of the founders of Yellow Cab Pizza.