Have always loved lasagne, But absolutly hated ricotta cheese. UNTIL I found the secret of making it you'r self. 16oz.cottage cheese and 3 eggs in the blender. wonderfull and creamy.A must try. You will be delighted.

I agree.  Great substitute, but not the real deal. Ricotta can be made by heating milk and adding an acid (vinegar, preferably). The mixture is allowed to cool and then strained through cheese cloth.  It is fairly easy. Any of the recipe site (recipecenter.com, recipesource.com) will have all the specifics, if you like.

Technically speaking, heated milk and acid precipitated ricotta is not the "Real Deal" but it is delicious none the less (as are cottage cheese lasagnes). The real stuff is made from the whey that's left over from mozzerella, provolone or other lactic acid/rennet based cheeses. Here are some good recipes (traditional and non-traditional):

http://www.gourmetsleuth.com/cheeserecipes.htm