Boil a 16-oz package of pasta in salted water according to package directions.
In a large frying pan or wok, warm the minced garlic in 3 tablespoons of oil over the lowest heat setting while you wash and chop 6-8 cups of vegetables into bite-sized pieces.
Toss in the chopped vegetables (except for the cherry tomatoes and spinach) and sprinkle them with 1 teaspoon of salt and a teaspoon of Italian herbs. Then, turn the heat up to medium.
Sauté the veggies for about 6-8 minutes, until they turn darker and start to become tender. Then, add the cherry tomatoes and spinach, and cook for another minute or two, until the spinach has wilted.
Add 1/2 cup of pasta water, 1 1/2 cups of vegan sour cream, and 1 tablespoon of nutritional yeast (optional), stirring well. Slowly add in an additional 1/2 cup of pasta water until the desired consistency is achieved.
Let it come to a slow boil, then turn off the heat. Add the drained cooked pasta, and toss well until combined.
Add salt and pepper to taste, and optionally add a dash of red pepper flakes for a hint of spice, if desired. Serve hot.
Notes
Serve the pasta immediately: it's the creamiest when hot.
The cream sauce may seem too watery at first, but after it cooks and starts to cool a little, it thickens up.
If you use my homemade vegan sour cream, cashew cream, or coconut cream, you will need a little less pasta water.
It's delicious with a squeeze of fresh lemon juice mixed in at the end of cooking.