Low Carb Chicken Casserole

Ingredients

• 2 pounds boneless, skinless chicken breasts, cooked and shredded
• 1 tablespoon olive oil
• 1 medium onion, chopped
• 2 cloves garlic, minced
• 1 medium broccoli head, cut into florets
• 1 medium cauliflower head, cut into florets
• 1 cup sour cream
• 1 cup heavy cream
• 2 cups shredded cheddar cheese
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• 1/2 teaspoon paprika
• 1/4 teaspoon nutmeg
• 1/2 cup grated parmesan cheese