How to Make It
Preheat the oven to 450°. In a small bowl, cover the saffron with 1 tablespoon of the hot water and set aside.
On a rimmed baking sheet, toss the onion wedges with 1 tablespoon of the olive oil. In a large roasting pan, toss the cauliflower and sweet potato with 2 tablespoons of the olive oil. Season all of the vegetables with salt and pepper and roast for 10 minutes, adding the garlic to the onions in the last 3 minutes. Remove the onions and garlic from the oven.
Add the beans, tomatoes and their juices, wine, cumin, crushed red pepper and saffron water to the cauliflower and sweet potatoes; roast for 10 minutes longer.
Meanwhile, in a medium saucepan, bring the remaining 1 1/2 quarts of water to a boil. Whisk in the polenta; cook over moderate heat, whisking constantly, until thickened, about 5 minutes. Stir in the remaining 2 tablespoons of olive oil and 1/4 cup of Parmesan; season with salt and pepper.
Spoon the polenta into 4 bowls. Stir the onions and garlic into the other vegetables, season with salt and pepper and ladle over the polenta. Serve, passing the remaining Parmesan at the table.
One Serving 640 cal, 24 gm fat, 4.9 gm saturated fat, 88 gm carb, 16 gm fiber