Place the flour on a flat work surface and shape into a well.
Pour 2 eggs and 1 yolk into the center. Use a fork to start incorporating the flour into the eggs.
After a few minutes, add the tomato paste and mix with a fork.
If you want to get a green egg pasta noodles, add the chopped spinach to the dough instead of the tomato paste.
As soon as the dough reaches a certain size, they begin working it with the aid of a dough scraper, adding a few drops of water if it is too dry or a little flour if too soft.
As soon as the mixture reaches a certain consistency, begin working with the aid of a dough scraper.
When the dough is large enough, begin working with your hands.
Continue to knead until it becomes smooth.
Dust the dough with flour and let rest for 30 minutes wrapped in a damp cloth.
Once the dough has rested, it is ready to be rolled out with a rolling pin into sheets of desired thickness.