Shepherd's Pie!

[quijote]

I plan on having Shepherd's Pie tonight and (leftovers) tomorrow. It's too late for me to get a rec for tonight--I'm going to open a Gigondas and see what happens--but what would be some good bets for the future?

The Shepherd's Pie has ground beef, ground lamb, onions, mushrooms, rosemary, tarragon, celery salt, cumin seed, powdered cumin, salt, pepper, and mashed taters (of course).

I'd like to hear about general (varietal) and specific (brand) recs. Also, it may help you to know that I have various Cotes du Rhones (Guigal CdR, Gigondas, etc.), Aussie Shiraz and Spanish Rioja on hand.

Thank you!