Festekjian and her team have partnered with local purveyors like A&J King Artisan Bakers, Little Leaf Farms and Maitland Mountain Farm. Burgers are made using Angus beef — free of antibiotics, steroids and hormones — sourced from the best ranches. If beefy, 'Gram-worthy options like the Artisan (boursin, roasted tomato, pickled onion) and the Umami Truffle (pecorino, truffle, fried egg, arugula, aioli) don’t strike your fancy, the spicy cauliflower burger might just change the way you view veggie burgers forever.