Greek Sloppy Joes

From the blogger: "Greek Sloppy Joes made with ground beef, tomato gravy, feta cheese, and kalamata olives on a toasted brioche bun will melt in your mouth and are ready in less than 30 minutes! Greek Sloppy Joes are the PERFECT combo of my ultimate sloppy joes with some classic Greek flavors. The feta cheese gives it a really nice savory bite, while the kalamata olives bring a flavor that just takes these sloppy joes to a whole new level of amazing."