No longer just a venue for traditional American hot dogs, roller grills that sport everything from Mexican tortas to pork-filled Chinese steamed buns to breadsticks stuffed with jalapeño peppers and cheese are popping up all over the country.

Roller Grills Growing Up

Thanks to a surge of new products focused on ethnic diversity, the roller grill is hotter than ever before. There has been so much emphasis on fresh, made-to-order food and upscale coffee programs in the convenience store industry it’s easy to forget the tried-and-true roller grill. Sometimes implicated as part of the industry’s food-image problem—burned

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