The Coatesville Market has everything you never knew you wanted.
Come here if you're after quality crafts, second-hand goods and lunch. This is the best market I know for crocheted baby clothing and rugs as well as quality wooden furniture at pretty reasonable prices. You'll also find old-fashioned crockery, vintage poster art and a good selection of plants and hanging baskets for sale. As far as food goes, there's plenty of options but I almost always opt for the pizza from inside the hall. It's $3 a slice (bargain) and comes laden with roast veges. It even impressed my carnivorous friend who made a comment along the lines of: "It's so good, you don't even realise it's vegetarian".
One thing to note about this market is there is no cash facility. A few of the stallholders take cards but it's mostly a cash-based market so stop off at an ATM first. Parking is free (if you're lucky) on Mahoenui Rd, but otherwise for a gold coin donation you can park in the paddock a bit further along the Coastesville-Riverhead Highway.
Disclaimer: The Coatesville Market occurs on the first Sunday of the month.