Zucchini-Feta Triangles

Step 1:
Preheat oven to 350°F (180°C). Grease a 9 x 13-inch (3.5 L) glass baking dish.

Step 2:
In a small bowl, whisk together flour, baking powder, oregano, salt, paprika, black pepper, and cayenne; set aside.

Step 3:
In a large bowl, whisk eggs and egg whites until combined. Whisk in butter, flour mixture, green onions, and parsley. Stir in zucchini and cheese.

Step 4:
Spread the combined mixture evenly in the prepared dish. Bake for 25 to 30 minutes, or until set and brown around the edges.

Step 5:
Cool slightly before cutting into 2-inch (5 cm) squares, then in half to make triangles. Serve warm or at room temperature. Garnish with tomato slices and herbs, if desired.