Chop the onion. Once chopped, turn the Instant Pot on sauté function. Drizzle avocado oil in the pot and add your chopped onion and the ground sausage. Stir and sauté until sausage meat is browned on all sides. Salt the meat and add other seasoning as desired.
Mince the garlic, and chop the carrots and potatoes. Shred or chop the kale.
After the sausage is browned, add the garlic, carrots, and potatoes. Add salt and pepper.
Add diced tomatoes, bone broth, beans, and kale. Then, add the bay leaf and a small tablespoon of balsamic vinegar.
Give the soup a good stir and place the lid on the Instant Pot. Press the Soup button and turn the nob to sealing. Let cook for 2 hours on soup mode, then it will go to warm mode.
Instant pots use high pressure, so wait about 20 minutes until the pressure is released before opening the lid. The instant pot will not let you open the lid until the pressure is released.
Before serving, turn the instant pot back on sauté mode to warm the soup back up to hot.
Serve with warm bread and freshly grated parmesan cheese. Enjoy!