First things first, preheat your oven to 375°F (190°C). While that's heating up, remove the leaves from the cauliflower and trim the stem so it sits flat. Rinse the cauliflower and pat it dry gently.
In a small bowl, combine the extra virgin olive oil, Dijon mustard, dry white wine, finely chopped red onion, garlic powder, onion powder, salt, black pepper, and red pepper flakes. Give it a good whisk until everything is well incorporated. This sauce is where the magic happens – it's packed with flavor that will infuse the cauliflower with deliciousness.
Now, place your cauliflower on a baking sheet, a large oven-safe skillet, or a Dutch oven. Drizzle the sauce over the cauliflower, making sure it gets into all the nooks and crannies. You can use a brush to help spread it evenly.
Cover and pop your sauced-up cauliflower into the preheated oven and let it roast for about 40 minutes. Uncover and cook for another 5 minutes.You want it to become tender cauliflower and develop a beautiful golden brown crust. You can check for doneness by inserting a knife or fork – it should go through with ease.
Once your cauliflower is perfectly roasted, remove it from the oven. Sprinkle those roasted pumpkin seeds and pomegranate seeds on top for a delightful crunch and burst of color. Finish it off with some fresh parsley for a burst of freshness.
A Cauliflower roast that's sure to be a huge hit at your next Thanksgiving dinner. This delicious side dish recipe not only looks fantastic on your table, but it also has a wonderful flavor.