Updated Nov 24, 2014Chatelaine
- Preheat oven to 350F (180C). Lightly coat an 8-in. (2-L) square baking dish with vegetable oil. Grate potato. Thinly slice onion diagonally. Cut tomato into rounds. In a large bowl, whisk eggs with seasonings. Add potato and onion. Crumble in feta. Stir until mixed. Turn into baking dish and stir to evenly distribute ingredients. Top with tomato rounds.
- Bake frittata, uncovered, in centre of oven until middle is set when dish is jiggled, 30 to 35 min. Let stand 5 min, then slice and serve.