Preheat the oven to 425°. Line a medium sheet pan with foil. Toss together butternut squash, 1 tablespoon olive oil, and about ¼ teaspoon sea salt. Roast for 20-25 minutes or until the butternut squash is tender and browned in spots. Set aside.
Meanwhile, make pasta. Bring water to a boil. Add ½ teaspoon sea salt and cook pasta according to package directions. When pasta is finished, set aside a ½ cup of pasta water in case you need it for the sauce. Drain the pasta and set aside.
Heat 1 tablespoon olive oil in a large skillet over medium-high heat. Add chicken sausage and cook until browned, about 3-5 minutes.
Reduce heat to medium-low. Add cooked butternut squash and rigatoni to the pan, and stir to combine.
Add half and half and cheese, and toss together until everything is coated and saucy. (If the sauce is not coming together, add a small amount of pasta water and continue to stir until the sauce emulsifies.)
Serve hot & enjoy!