It's easy to paint an entire industry with a broad brushstroke and miss the nuances that each individual company has. In the restaurant business, many chains have struggled to find growth in recent years due to steadily rising competition. Yet for Texas Roadhouse (NASDAQ: TXRH), a unique dining experience has helped give the steakhouse chain the resiliency to stand up to tough conditions and thrive.Coming into Monday's first-quarter financial report, Texas Roadhouse investors expected more of the same from the Lone Star State-themed restaurants in terms of growth.