Spaghetti with Creamy Feta Sauce

Preheat the oven to 190–195 °C and prepare a baking dish (approx. 25 cm × 30 cm).

Bring salted water to a boil in a pot and cook the whole wheat spaghetti according to package directions (approx. 17 minutes). Then drain.

Cut the celery and onion into small cubes. Halve the cherry tomatoes. Place all the prepared vegetables in the baking dish. Add olive oil, salt, pepper, and the chopped tomatoes, and mix everything well.