Sage & Onion Polenta

I decided to try and make this with my left over Sage and Onion Polenta. I refrigerated the leftovers and removed them from the fridge just before trying to cut them into the chunks to put into the baking dish. Since my polenta never did get really firm I had to scoop it into the chunks. When the gratin was baking the polenta ran back together so I had a solid hunk instead of individual chunks. It did get a bit browned on the top though and tasted good even if it wasn't solid. I may try this method again with some firmer polenta.