I ate at Keens Steakhouse, the ultimate spot for 'power lunches' in NYC. It's a great value even if you're not doing business.

Rachel Askinasi; Alyssa Powell/BI

• I visited Keens Steakhouse, a historic New York City haunt that's popular for power lunches.
• The place feels cozy and rich with history, and the food is pretty impressive.
• It's expensive but tasty — and I think the mutton chop is famous for a reason. 

The power lunch, business lunch, midday feast — it's a meal by many names. And as dining trends shift over the years, one thing that's stayed constant is the symbiotic relationship...