The diner was go-to spot for delicious greasy food for more than 30 years before in closed in 2014. Sarah Jordan, an award-winning pastry chef, reopened the diner in 2015. View Full Caption DNAinfo/Josh McGhee

LOGAN SQUARE — Johnny's Grill and Mezclaeria Las Flores — two of the most prominent establishments on the square — are closing, ownership announced Friday afternoon.

The last day for both the diner and the adjoining bar is Friday, according to an Instagram post.

"Friends, it is with a heavy heart and great sadness to share with you that Johnny's Grill and Mezcaleria Las Flores will be closing after service next Friday, November 3rd," the post reads.

The post continues, "A big thank you to everyone involved in both places from the beginning, especially our fearless and talented leader Chef Sarah Jordan. We can't thank her enough for all of the heart and soul that she put into every last bite. While we are saddened, we hope you'll come say goodbye in the next few days and have a mezcal cocktail and a double cheeseburger. Thank you for the memories."

The longtime diner at 2545 N. Kedzie Blvd. closed in 2014 after more than 30 years of business.

In August 2015, Jordan, an award-winning pastry chef who previously worked at Boka and Cicchetti, reopened the diner and an adjoining mezcal bar in the former Fleur flower shop.

It's unclear what prompted the closure. Neither Jordan nor Saul Osacky, owner of the building and the Logan Square Auditorium, immediately returned messages Friday afternoon.