Red Bordeaux wines are the perfect accompaniment to Lamb. Roast Lamb, Kleftiko, Lamb Casserole, Irish Stew:
Big Reds from Pauillac, Haut Médoc and Médoc or Petits chateaux and Crus Burgeois or Rioja.
New World Bordeaux equivalents would also work, like Cabernet Sauvignon-Merlot blends from : Argentina, Chile, South Africa and Australia
Lamb Kebab or Grilled Lamb Chops:
New Zealand Pinot Noir or Chilean Cabernet Sauvignon
Lighter dishes like Lamb Kebab or Grilled Lamb Chops would work well with fruitier New World wines.
Lightly oaked whites from Italy or the South-West of France
Lancashire Hotpot is actually quite light-weight for a meat-dish; try it with a lightly oaked, wine like an Italian Chardonnay or similar dry white wine from South-West of France.
Beaujolais or fruity Vin de Pays Red wines
Shepherd pie needs a low tannin Red wine with little or no oak influence.
Australian or Chilean Shiraz
When simply sauteed in butter require a light White wine like Italian Chardonnay. But if they are to be served in a cream sauce then go for more body in the wine: Chilean Chardonnay or a White Burgundy.