Preheat oven to 425 degrees F.
Line baking sheet with foil and set aside.
Place cauliflower, olive oil, and garlic in large Ziploc baggie.
Shake to evenly distribute olive oil.
Add cornmeal, salt, and pepper, and shake again to evenly distribute cornmeal.
Spread cauliflower out on prepared pan.
Bake in preheated oven 35-40 minutes, until cauliflower is golden brown.
Enjoy!