There are three eateries within walking distance of the resort, each offering a different style of menu and ambience; 

The Boat Shed https://www.facebook.com/The-Boat-Shed-Bar-and-Grill-223059741081521/

Koru Café https://korucafe.biz/?page_id=230

Blue Lagoon Restaurant at Aitutaki Village https://www.aitutakivillage.com/blue-lagoon-restaurant-and-bar.html

There are other options on the main island that can be reached with a rental car or taxi including;

Pacific Resort https://www.pacificresort.com/aitutaki/restaurants-dining/

Tamanu Resort https://www.tamanubeach.com/restaurant_bar