Buffalo Chicken Casserole

Name: Buffalo Chicken Casserole
Prep time: 15 min
Total time: 15 min
Cuisine: American
Ingredients: 1 head cauliflower, cut into florets; 2 tbsp. extra-virgin olive oil; Kosher salt; Freshly ground black pepper; 12 oz. cream cheese, softened; 1/3 c. buffalo sauce; 1/4 c. ranch dressing, plus more for drizzling; 1/3 c. sliced green onions, plus more for garnish; 1 tbsp. garlic powder; 2 c. shredded rotisserie chicken; 1/2 c. shredded cheddar; 1/2 c. shredded gouda