Technomic data, analyzed by Nation's Restaurant News, ranks the top 15 US chain restaurants. Leading in casual dining are Olive Garden, Texas Roadhouse, and Applebee's.

While fast-food and fast-casual chains dominate, casual-dining and family-style chains also thrive. Challenges include Red Lobster's recent bankruptcy filing, impacting the industry. These chains now vie with fast-food for value-driven customers.

From Olive Garden to Denny's, chances are you've visited one recently. Technomic's report, based on historical data, delves into trends and specifics like annual sales and restaurant counts. Here's the latest on the US's biggest chain restaurants.

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