An all-you-can-eat sushi chain is scooping up old Shari’s across Oregon and Washington. Across the Pacific Northwest sit smatterings of hexagonal buildings — once home to the reluctantly beloved 24-hour diner chain Shari’s Cafe & Pies. The company closed all its Oregon locations in 2024, leaving those recognizable, nostalgic facades ready for the taking. Two years later, fewer and fewer former Shari’s remain empty. Now, instead of pie, they serv…