Prep oven: Preheat oven to 190°C (375°F). Line the bottom of a 23cm (9-inch) round pan with parchment paper.
Cook filling: Heat olive oil in a skillet over medium heat. Add onion and sauté until golden (6–7 minutes). Stir in carrot and bell pepper; cook 5–7 minutes. Add cabbage, season with salt, pepper, and spices, and cook 10–12 minutes until tender. Remove from heat.
Make batter: In a bowl, whisk mayonnaise, sugar, salt, baking powder, and 3 tablespoons of flour until smooth. Add eggs, mix well, then add remaining flour. Stir until the batter is thick and smooth.
Assemble: Spread half the batter into the prepared pan. Add the cabbage filling evenly, then pour the rest of the batter on top. Smooth with a spatula. Sprinkle with sesame or nigella seeds.
Bake: Bake 25–30 minutes, until golden brown on top. Let cool 20–30 minutes before slicing and serving.
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Notes
Spices & Herbs – Try smoked paprika, cumin, garlic powder, or fresh dill for extra flavor.
Cheesy Twist – Add ½ cup shredded cheese (cheddar, mozzarella, or feta) into the filling or sprinkle on top before baking.
Protein Boost – Mix cooked chicken, tuna, or ground turkey into the filling for a heartier version.
Flour Alternatives – Whole wheat flour or spelt flour can replace all-purpose flour for a nuttier flavor.
Storage – Store leftovers covered in the fridge for up to 3 days. Reheat in the oven at 170°C (340°F) for 10–12 minutes to keep it crisp.
Freezing – Freeze baked pie slices in an airtight container for up to 2 months. Thaw overnight in the fridge, then reheat.
Serving Ideas – Delicious warm or at room temperature. Serve with a dollop of sour cream, Greek yogurt, or alongside a fresh salad.
Make Ahead – Prepare the filling a day before, keep it in the fridge, and assemble just before baking.