The foodland. Check it out on yelp. Most people go back often. Get salmon or ahi on a salad or a poke bowl. They also have a sit down in Haleiwa. The Thai truck in Kahului isn’t bad. For sit down restaurants try Lei lei’s at the turtle bay golf course or the Roy’s at turtle bay. North shore doesn’t have Maui level dining but the beaches are awesome.
For plate food get the kaleidoscope ribs at papa ole’s in Hauula.
If you want to teach kids to surf there is a beach at malaekahana state park near Kahuku that has great beginner waves.