Butternut Squash Ravioli with Chicken Sausage & Kale What's the secret to making store-bought butternut squash ravioli even more delicious? Add apple-chicken sausage, tender greens and lots of caramelized onions. We add a bit of sugar to help the onions caramelize faster, but feel free to omit it (just cook the onions a bit longer if you do). Buy prewashed chopped kale to cut down on prep time. It all adds up to an easy dinner that's ready in just 20 minutes.