Hard Rock Cafe -- This internationally known establishment, with two locations in Tokyo, should pacify grumbling teenagers. They can munch on hamburgers, gaze at famous guitars and other rock 'n' roll memorabilia, and, most importantly, buy that Hard Rock T-shirt.
Kua' Aina -- When your kids start asking for "real food," take them here for some of the best burgers in town.
Shakey's -- When nothing but pizza will satisfy the kids, head for one of these chain pizza parlors for an all-you-can-eat bargain lunch.
Sometaro -- This traditional restaurant specializes in Japanese-style pancakes filled with meat and vegetables, and fried noodles that you cook yourself at your table, which might delight more adventuresome little eaters, especially because they get to pick their own ingredients.
Tokyo Catering -- This inexpensive cafeteria won't break the bank and, with everything from sushi to noodles, offers enough to satisfy most diners. Your kids will be impressed, too, with the views from its location on the 32nd floor, but to really wow the little ones, take them also to the free observatory on the 45th floor.