Preheat the oven to 425 degrees Fahrenheit (220 degrees Celsius).
Roll out the puff pastry onto a baking sheet lined with parchment paper.
1 puff pastry sheet
Spread the ricotta cheese evenly over the puff pastry.
3/4 cup ricotta cheese
Top with sun-dried tomatoes, kalamata olives, green olives, chopped artichoke hearts, sliced grape tomatoes, and crumbled feta cheese.
3 ounces sun-dried tomatoes, 1/2 cup kalamata olives, 1/2 cup green olives, 6 marinated artichoke hearts, 1/2 cup sliced grape tomatoes, 1/2 cup crumbled feta cheese
Season with salt, black pepper, dried oregano, and a drizzle of olive oil.
Salt, Black ground pepper, 1 1/2 teaspoons dried oregano, A drizzle of olive oil
Fold in the edges of the puff pastry, leaving about 2 inches of crust to form a border.
Beat the egg and brush it over the exposed pastry border.
1 egg
Bake in the preheated oven for about 20 minutes, or until the pastry is golden brown and crisp.
Remove from the oven and let it cool for 5 minutes.
Garnish with baby arugula and additional olives, if desired.
Drizzle with olive oil, season with salt and pepper to taste, and serve.