Roasted Cauliflower

1 head of chopped cauliflower florets, 1 chopped medium onion, 1/2 cup greek olives, and as much minced garlic as you like. Add all to a baking dish with some salt & pepper, and a few splashes of olive oil (or cooking spray). Roast in the oven at about 400 degrees for about 45 minutes, stirring occasionally.