returning setof from insert ?

Hi,

A bit of pl/pgsql writer's block going on here ...

Postgres complains "RETURN cannot have a parameter in function returning set" in relation to the below. I don't really
wantto have to "RETURNS TABLE" because that means I have to enumerate all the table columns. 

I'm sure I'm missing something simple here !

CREATE OR REPLACE FUNCTION foobar(foo text,bar text) RETURNS SETOF bar AS $$
DECLARE
v_row bar%ROWTYPE;
BEGIN
insert into bar(f,b) values(foo,bar) returning * into v_row;
return v_row;
END;
$$ language plpgsql;