The food processor makes it easy to rice the cauliflower for this healthy and delicious casserole. Combine the riced cauliflower with cooked quinoa, herbs, spices, and cheese, and bake it in the oven until the top is golden and the casserole is heated through. This vegetarian and gluten-free casserole is packed with nutrients and flavor, making it a great option for a satisfying and wholesome meal.