Have one of those boxes of polenta at home (the tube stuff doesn"t really work for this. If you want to make it more from scratch, feel free!). Make it. While it sits on the stove top, chop up veggies. Red, green, and yellow peppers are "fun" (wheeeeee), while Mushrooms and onions tend to be "on hand". When the polenta is ready, pour into a pyrex pan (round, square, heck even non-pyrex is fine so long as it is flat). Cover with spagetti sauce and veggies. Bake. Eat. My less ff female friend (less ffff???) puts low fat skim mozarella on it, i don"t. Enjoy!