Heat oil in a large oven-safe skillet over medium-high heat. Add onion and saute for 4-5 minutes, then add garlic and cook for an additional minute.
Add the cut sausage to skillet and cook for 3-4 minutes or until sausage is lightly browned, stirring occasionally.
Add zucchini, water, tomatoes, oregano, parsley, garlic powder, salt, pepper, beans and gnocchi. Mix well. Gently fold in the spinach.
Top with mozzarella and Parmesan cheese, then place in the oven for 15-20 minutes. Remove from oven, top with parsley, and serve.
Notes
You could also use sausage that hasn’t been cooked yet, if you are looking for more sausage taste. We used pre-cooked turkey sausage in this recipe, but you could use any sausage. I have also used pre-cooked apple chicken sausage, (found near the hot dog section at the grocery store) and it tasted amazing with this.