Heat the oven: Preheat to 425°F (220°C). Line a large sheet pan with parchment for easy cleanup.
Prep the veg: Toss onion, bell pepper, zucchini, cherry tomatoes, and eggplant (if using) with 2 tablespoons olive oil, salt, and pepper. Spread in a single layer on the sheet pan.
Roast until tender: Roast for 18–22 minutes, stirring once, until edges are browned and tomatoes have burst.
You want some char—this adds flavor.
Season with garlic and lemon: While still warm, toss the roasted veg with minced garlic and lemon zest. The residual heat will soften the garlic without burning it.
Prep the flatbread: Place flatbread or naan on another baking sheet. Brush lightly with 1 tablespoon olive oil.
If using a pre-baked pizza crust, just brush the top to help it crisp.
Add za’atar base: Sprinkle 1 teaspoon za’atar over each flatbread. This layers flavor from the bottom up.
Top and bake: Distribute the roasted veggies evenly over the flatbread. Crumble feta on top.
Sprinkle the remaining za’atar and a pinch of pepper. Bake for 7–10 minutes, until the edges are crisp and the feta is warmed.
Finish with freshness: Remove from the oven. Drizzle with a little olive oil and a squeeze of lemon juice.
Scatter chopped parsley or mint over the top. Add red pepper flakes if you like heat.
Serve: Slice and serve immediately. Optional: drizzle with honey or tahini for a sweet or nutty counterpoint.