10 ounce package frozen butternut squash, steamed until soft OR 2 cups cubed fresh butternut squash, steamed or boiled until soft.
1cupreserved pasta water
2tablespoonstomato paste
1/4cupheavy cream
For the Pasta
2cupsdry penne pastacooked al dente (1 cup pasta water reserved) I used gluten free Barilla
1poundItalian sausagebrowned
2cupsfresh kalechopped
1/2cupparmesangrated
salt and pepper to taste
Instructions
Cook the pasta in boiling, salted water according to the package directions. Drain the pasta, reserve 1 cup pasta water. Set aside.
Brown the Italian sausage, drain any grease and set aside.
To make the pasta sauce steam the butternut squash until soft. Add to a blender and puree until completely smooth (add 1-2 tablespoons of liquid if needed)
Heat a deep skillet over medium low heat. Add the butternut puree, pasta water, tomato paste and heavy cream. Stir the mixture and heat until smooth. Taste the sauce, add additional cream, or salt and pepper if desired.
Stir in the cooked pasta, Italian sausage, chopped kale and parmesan. Heat through and add salt and pepper as needed.
Notes
See the notes in the post for tips and tricks for the best pasta sauce.