As we define it for this guide, casual dining is a state of mind. It doesn't necessarily mean inexpensive, though it usually implies good value — getting as much or more than you paid for. It doesn't necessarily mean shorts and slippers, though it suggests a relaxed dress code.

HOUSE WITHOUT A KEY, Halekulani hotel

House Without a Key, a seaside open-air dining room and courtyard, is this exclusive hotel's version of a coffee shop, serving a generous daily breakfast buffet and lunch and dinner of the classic American sort (burgers, salads, sandwiches at lunch; grilled meats and fish and pasta at dinner). The draw here is the setting and the nightly live music and hula; it's the premier spot to bring out-of-town guests for sunset, drinks and a gracious Hawai'i experience.

Halekulani hotel, 2199 Kalia Road. 923-2311. www.halekulani.com. Breakfast: 7-10:30 a.m. Monday-Saturday; 7-10:30 a.m. Sunday. Lunch: 10:30 a.m.-5 p.m. daily. Dinner: 5-9 p.m. daily. Valet and self-parking. No reservations. VS, MC, AX, DC, JCB. No checks. Breakfast buffet: $$$. Lunch and Dinner: $$.