Heat the oil in a deep saucepan, add the onions, garlic and red chili flakes. Cook till the onions turn translucent, about 3~4 minutes.
Next add the crushed tomatoes, basil, water, salt and pepper. Bring the mixture to a boil and add the broken spaghetti.
Lower the heat, cover the pan and cook till all of the water has evaporated and the pasta is tender, about 15~20 minutes.
Stir in the baby greens and capers. Stir well, cover and remove from heat.
Serve warm with grated vegan cheese.