Set your Instant Pot Pressure cooker to Sauté. When hot, add olive oil and bacon. Remove bacon with a slotted spoon once the fat is rendered and the bacon is crispy.
Form small ½ inch balls with Italian sausage and brown them in the instant pot still on Sauté. Remove and set aside once the outsides of meatballs are browned. (They do not need to be cooked through, they will pressure cook in the soup).
Add onion to your pot and sauté for 4 minutes, until translucent.
Add Potatoes, broccoli stems, carrots, and garlic. Sauté for 4 minutes.
Add to your pot the chicken broth, water, cooked sausage balls, thyme and rosemary sprigs, and optional red chili flakes. Pressure cook on high for 5 minutes. Administer a quick release.
Add beans, kale, and broccoli crowns to the soup, and let simmer for 5 minutes or until broccoli is firm but tender. Garnish with Fresh chopped parsley and parmesan cheese and serve.