Dice onion. Sauté onion in olive oil until caramelized. Add sausage and cook fully. Add in Italian Seasoning and Garlic while sausage is cooking. Add spaghetti sauce and equal amounts of water. Add broth paste and stir. When everything is incorporated, add beans and tomatoes and bring to a low boil, simmering for 15-20 minutes. Add green beans and simmer 10 minutes. Add cooked pasta and serve with parmesan cheese.