In the Mani, the southern part of the Peloponnese and one of the agriculturally poorest parts of the country, little else besides citrus and olive trees flourish. I sampled this humble dish in the home of a local cook many years ago and have made it countless times over the years. Oranges and olive oil and a generous dose of garlic provide the flavor palette that enhances the spinach. I haven’t seen this combination of flavors anywhere else in Greece.