Sour Cream And Onion Cauliflower Bake | 30-Minute, Low-Carb, Easy

Ingredients

• 3 bags (30 oz steamable frozen cauliflower rice)
• ¼ cup 2 oz unsalted butter, softened, divided
• 1 cup ~150g chopped white onion
• 1 tsp 5g minced garlic
• 1 cup 240g sour cream
• 1 cup 112g shredded sharp cheddar cheese
• ¼ cup finely chopped green onions
• 1 tsp onion powder
• ½ tsp salt
• ½ tsp pepper
• ⅓ cup 40g grated Parmesan cheese
• Finely chopped green onions