This dish is best made with a creamy variety of feta, which melts perfectly into the warm pasta. Use a sheep-and-goat's-milk blend if you can find it; otherwise, a good fresh goat cheese or French feta works well.
This dish is delicious even if your cauliflower "steaks" are sliced less than perfectly. If you are cooking smaller pieces, simply reduce the cooking time by a few minutes. Use extra roasted vegetables later in the week for Easy Chickpea Curry.
This meal comes together especially easily when using extra roasted vegetables reserved from Cauliflower Steaks with Roasted Pepper and Tomato Salad. If you haven't made that recipe, simply roast 1 cup of cauliflower florettes and 1 1/2 pints of grape or cherry tomatoes.