Add Garlic & Onion (& Bacon if using) to Saucepan, and saute with a splash of vegetable stock.
Add Zucchini, Potato, Salt & Pepper, and rest of Vegetable stock to saucepan.
Bring to boil with lid on, then turn down the heat to a simmer for about 10 minutes (until potatoes are soft)
Blend with a Hand Blender.
Stir in a little Parmesan cheese and chopped parsley.
Serve immediately or transfer to Tupperware container to reheat later.