Rosenberg’s Bagels Merges With Bagel Store to Produce 1 Million Bagels a Year Alexandra PalmertonSeptember 1, 2017 The Bagel Store and Rosenberg’s Bagels and Delicatessen — two of Denver's most popular bagel stores— have merged to become Rosenberg’s Kosher. This merger makes... 303 MagazineFeaturedFood + BoozeRestaurantsRiNo / Five Points2 min read