Chop the celery, carrot, zucchini and potato into 2cm cubes. Set aside.
Cut the green beans into 2cm pieces. Set aside with the other vegetables.
Add the onion and garlic to the Thermomix bowl. Chop for 3 seconds / speed 7.
Add the olive oil to the bowl and saute for 3 minutes / Varoma / speed 1 with the simmering basket on the lid in place of the MC.
Add the canned tomatoes, tomato paste, stock, oregano, black pepper and chopped vegetables to the bowl. Cook for 15 minutes / 100 degrees / REVERSE / speed 1.
Add the beans, pasta and baby spinach to the bowl (you might need to push the spinach down into the sauce with a spatula). Cook for 10 minutes / 100 degrees / REVERSE / speed 1.
Serve in bowls sprinkled with freshly grated parmesan and freshly chopped parsley leaves.