All i do for my sauce is brown mince and onion.
add salt, pepper, oregano, oxo cube, crushed garlic and some chilli paste and a dash of red wine and let all that cook.

Then add 1 tin of crushed tomatoes and then a jar of doilmio sauce and let simmer.

dont know if u were wanting a sauce from scartch or not but this is yummy!!

this is same sauce i use also in lasagna but on top of each layer of meat i put some grated cheese and bechamel sauce!and on top layer of pasta i coat pasta in bechamel sauce and then heap with grated cheese!!