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Katherine Heigl can rock a big belt buckle like no one else, and that's no bull. Actually, that IS a bull on the buckle. Yeehaw!

While out to lunch in Beverly Hills with her mom and sexy hubby Josh Kelley, the former Grey's Anatomy star was all smiles. Perhaps is was all the vino they were drinking ... or just good company.

Baby Naleigh is nowhere in sight, but all parents need a break once in awhile. So great to see these two still going strong!

See Katherine's mom making sure there's no drop of wine left ... after the jump.