Preheat the oven to 325 degrees F. Press the feta and ricotta cheese through a sieve. In a large mixing bowl, beat together the cheeses and honey until smooth. Add the eggs, one at a time, beating well after each addition.
Pour the mixture into the prepared crust. Prepare the topping. Drizzle the honey over the cake, then dust with the cinnamon. Bake the cake for about 55 minutes, or until set. Cool to room temperature, then chill.