The cozy, cottage-like storefront that used to be Benny J’s in Downtown Westfield Plaza is a meeting place for yogurt and coffee lovers once again this summer. Owner Jason Yee opened the cozy nook’s doors to the public Thursday as Yummy Yogurt, a self-serve frozen yogurt shop and café. With its easy-to-spot sprinkles sign and bright pink walls in view from the storefront's window, Yummy Yogurt is currently the only yogurt shop in Downtown Plaza. Yummy Yogurt is sold in cups by the ounce, Yee said. Yogurt junkies can choose from and mix mango, strawberry, chocolate, cheesecake, vanilla and tart-flavored nonfat yogurt, and throw in toppings like almonds, mochi, almond roca, marshmallows, r