Preheat your oven to 375°F (190°C). Grease a 9-inch round baking pan.
Heat olive oil in a large skillet over medium heat. Add onions and cook until softened, about 5 minutes.
Add carrots and cook for another 5 minutes, then add zucchini, bell pepper, and mushrooms. Cook until vegetables are tender but still maintain their shape.
Stir in garlic, spices, chickpeas, parsley, and cilantro. Season with salt and pepper. Remove from heat and let cool slightly.
Layer 4 sheets of phyllo in the pan, brushing each sheet with melted butter. Let edges hang over the sides.
Spread the vegetable mixture evenly in the pan.
Cover with remaining phyllo sheets, brushing each with butter. Fold overhanging edges to seal.
Brush the top with remaining butter and score the surface in a diamond pattern.
Bake for 30-35 minutes until golden brown and crispy.
Let cool for 10 minutes, then dust with powdered sugar and cinnamon before serving.