Pour the flour onto a work surface, making a depression in the middle. Pour eggs, salt and oil into the depression. Knead ingredients to a smooth dough. Cover with a cloth and let it rest for about 30 minutes. In the meantime, wash and drain the spinach thoroughly. Steam in a little water and puree. Then knead half of the dough with tomato paste and spinach puree on a lightly floured work surface.
Work through with your hands or a pasta machine until the dough is elastic. Roll out and cut into squares of about 6 cm. Cover with any kind of filling. Fold squares into triangles. Press together at the edges. Place opposite tips of the triangles on top of each other
Pasta machine: Marcato