Rinse 1 cup farro. Place in a pot and add 3 cups chicken stock (the stock should cover the farro). Bring to a boil. Reduce heat to medium low and simmer for 30 minutes. Remove from heat.
Preheat oven to 375 degrees.
In an 8 or 9 inch Dutch oven, saute pancetta over medium heat for 5 minutes. Add 1 Tbsp. olive oil, onion and butternut squash and cook for 6-8 minutes stirring often. Add garlic, sage, salt, pepper and red pepper flakes and continue to cook 2 minutes more.
Add cooked farro, kale and 1/4 cup parmesan cheese and mix gently until well combined. Sprinkle with extra parmesan and bake uncovered for 15-20 minutes, until squash is tender.