New to Dinner Ladies

Pat and Margaret:
http://www.imdb.com/title/tt0124829/combined
Victoria Wood with All the Trimmings:
http://www.imdb.com/title/tt0272343/combined
Victoria Wood (a series of 6 individual playlets):
http://www.imdb.com/title/tt0285410/combined
An Audience with Victoria Wood:
http://www.imdb.com/title/tt0213466/combined
Nearly a Happy Ending:
http://www.imdb.com/title/tt0181245/combined
Talent:
http://www.imdb.com/title/tt0181846/combined
Happy Since I Met You:
http://www.imdb.com/title/tt0181571/combined

All of these were written by Victoria Wood and like all of her work are simply excellent. All are available on DVD too. With the exception of 'Happy Since I Met You', she also appears in all of them.

If you have just watched 'dinnerladies' and enjoyed it, then you could try 'Victoria Wood with All the Trimmings' next as that was made the year 'dinnerladies' ended and several of the 'dinnerladies' cast members reappear.