Creating your Cheesy Baked Cauliflower Casserole is smooth sailing with these easy steps:

1. Preheat Oven: Start by preheating your oven to 375°F (190°C). Greasing a casserole dish will ensure easy cleanup later.
2. Prepare Cauliflower: Boil a large pot of salted water and add cauliflower florets. Cook for about 5-7 minutes until slightly tender, then drain.
3. Sauté Garlic: In a pan over medium heat, melt the butter. Add minced garlic, sautéing for about 1-2 minutes until fragrant.
4. Make Cheese Sauce: In the same pan, pour in the heavy cream, along with onion powder and garlic powder. Stir well and let simmer for a few minutes. Add shredded cheese and stir until melted and smooth.
5. Combine Cauliflower: Add the drained cauliflower florets to the cheese sauce, stirring gently to coat each piece completely.
6. Transfer to Dish: Pour the cheesy cauliflower mixture into the prepared casserole dish. Spread evenly.
7. Top with Parmesan: Sprinkle grated Parmesan cheese over the top for an extra cheesy finish.
8. Bake: Place the casserole in the preheated oven and bake for about 30-35 minutes, or until bubbling and golden brown.
9. Cool Slightly: Remove from the oven and allow to cool for a few minutes.
10. Garnish & Serve: Sprinkle fresh parsley over the top if desired before serving.

These simple steps will guide you in making a flavorful Cheesy Baked Cauliflower Casserole that will surely impress!