Actually, crepes used to be the poor mans dinner, but nowadays it's a specialty everyone loves. The Crespelle can also be called Manicotti, they are being served in many restaurants in Italy.
200 g Flour
250 ml Milk (you can also use a Milk-Water mix)
1 pinch of Salt
Mix these ingredients together with a whisk to a not to soft mixture.
Heat very little oil in a flat pan and add a soup-ladle full of the mixture. Now spread this mix softly with the ladle until it covers the whole pan and is very thin. Turn over after 2 minutes and fry for 2 more minutes.
You can prepare these crepes a day ahead.