Shredded parmesan cheese, optional - omit for Whole30
Place a large skillet over medium heat. Add 1 Tbsp. avocado oil. Once oil is hot add butternut squash noodles and saute for 2-3 minutes. Then add 2 Tbsp. water and cover for 10 minutes or until squash noodles are tender (not overly soft/mushy). Add additional water as needed to prevent noodles from burning. Remove squash noodles from heat and transfer to a plate or bowl.
To the same skillet over medium-high heat add remaining 1 Tbsp. avocado oil. Once oil is hot, add red onion. Saute for 2-3 minutes. Next add mushrooms and garlic and saute for another 2-3 minutes or until mushrooms start to soften and give off moisture. Add kielbasa and continue to cook until kielbasa is heated through, about 3-4 minutes.
Add the kale to the pan and saute until kale is wilted then toss in the butternut squash noodles and heat through.
For more heat, add a sprinkle of crushed red pepper. Salt to taste.