It’s easy to dismiss chain restaurants in favor of one-off local spots. But, sometimes, big can mean better. These are the homegrown restaurants that have proved so popular, they’ve outgrown their original locations and expanded to meet demand. From tiny taquerias and cafés with spots dotted around one city to Vietnamese restaurants that have sprawled across a state and, in some cases, opened branches elsewhere in the US, here are the chains worthy of a visit. (As the current situation is changeable, do check individual restaurants' websites for opening hours before visiting.)