Place flour on a flat, preferably wood, surface. Create a large well in the centre.
Pour water, olive oil, and salt into the well.
Using a fork, stir the water mixture, slowly pulling the flour into the water mixture.
Continue stirring until a dough forms and little to no loose flour remains, approx. 7-10 minutes.
Knead the dough for 7-10 minutes to activate the gluten. Add extra flour and/or water as necessary. Push your finger into the dough, the dough should begin to spring back to its original shape. If not, keep kneading.
Cover the dough and set aside for 30-60 minutes. While you wait, prepare the filling.
Roll out the dough until you can see your hand through the dough, about 1/16 inch. For the filled pasta, cut out rectangles and place a small amount of filling onto one side. Fold into a square and pinch around the edges to ensure they do not open. If you are not using the filling, cut and/or shape pasta in any way you'd like.
Bring salted water to a boil, and boil the pasta for approx. 2-3 minutes, adjust time as needed. (Homemade pasta cooks a lot faster).