Start by spiralizing sweet potatoes to turn them into noodles. Use kitchen scissors or a knife to cut the long strands into more manageable sized pieces. Set aside.
Heat a large skillet over medium heat and add 1 tbsp avocado oil and onion to the pan. Once onion begins to soften (about 4-5 minutes), add dried herbs to pan.
Once herbs become fragrant (about 1-2 minutes), add garlic and ground Italian sausage to pan and cook until sausage begins to brown a bit.
Add marinara sauce to pan and stir to mix everything together. Turn down to low and let simmer while you heat up the noodles.
In another skillet over medium heat, add 1 tbsp avocado oil, the sweet potato noodles and a pinch of salt to the pan. Cook and let the sweet potatoes soften, stirring occasionally for about 5-6 minutes. Add spinach to the pan and continue to cook until spinach wilts.
Turn off all the burners and serve with a bed of the sweet potato noodle mixture and the marinara on top. Enjoy!