Place naan on the prepared pan. Mix ricotta, marinara (or pesto) and lemon zest in a small bowl. Spread the mixture onto the naan, creating a well in the center. Carefully crack egg into the well. Sprinkle with Parmesan. Bake until the naan is golden, the egg white is set and the cheese is melted, 8 to 10 minutes. Garnish with basil and pepper, if desired.