Caramelize an onion: Sauté sliced onion in 1/2 tablespoon olive oil on medium heat for about 5 minutes. Cover and reduce to low, cook another 20 minutes. Top a mini Boboli with about 1/3 cup provolone cheese, the caramelized onion and 1/3 cup feta cheese. Speedbake in Advantium 4 1/2 minutes.