Preheat the oven to 400℉ and set the pastry out to defrost.
Peel and cut up the potatoes, sweet potatoes and carrots into chunks. Steam them for 5 minutes and set them aside.
Sauté the onion in a large pan with the olive oil and spices for 3 minutes. Add the mushrooms and vegan sausage. Sauté till the sausage has browned.
Add the carrots, potatoes, zucchini, sun-dried tomatoes, black beans, corn, baby spinach and parsley. Simmer for 5-10 minutes. You may need two pans depending on how big yours is. Set aside.