
This vegetarian pastitsio is a hearty, Greek-inspired baked pasta layered with a rich lentil and tomato sauce, then finished with a creamy white sauce and feta. Warm cinnamon, oregano, and sweet onions give it deep flavor, while the oven does the final work for an easy, satisfying dinner.
Preheat the oven to 190C/170C fan/gas 5. In a large saucepan, combine the sliced onions, olive oil, bouillon powder, bay leaves, balsamic vinegar, garlic, 1 tsp dried oregano, cinnamon, and 250 ml water. Cover and simmer over medium heat for 10 minutes until the onions begin to soften.
Remove the lid and continue cooking for 10 minutes, stirring often, until most of the liquid has evaporated and the onions are very soft. Meanwhile, cook the penne in a large pan of salted boiling water until al dente, according to the package instructions. Drain well and set aside.
Stir the chopped tomatoes, tomato puree, and green lentils with their liquid into the onion mixture. Mix well, cover, and simmer for 5 minutes so the flavors combine. Remove and discard the bay leaves.
To make the white sauce, whisk the milk, 200 ml water, and wholemeal flour together in a saucepan until smooth. Cook over medium heat, stirring constantly, for 8-10 minutes until thickened and lump-free.
Separate the egg if you have not already done so. Stir the egg white through the cooked pasta, then spread the pasta evenly in the base of a baking dish. Spoon the lentil sauce over the pasta in an even layer. Stir the egg yolk into the white sauce, then spread the sauce over the lentil layer. Top with the crumbled feta and the remaining 1/2 tsp oregano.
Bake for 40 minutes, or until golden on top and bubbling around the edges. Let the pastitsio rest for 5-10 minutes before serving with the tomato, onion, and dill salad. Cool leftovers quickly, refrigerate for up to 2 days, and reheat until piping hot.
For a fully vegetarian result, make sure the feta and bouillon are vegetarian-friendly. If you prefer a richer sauce, use dairy milk; unsweetened plant-based milk also works well. Do not overcook the pasta before baking, or the final dish can become too soft.




