Heat oil in a medium soup pot and sauté the onion, garlic and potatoes for 8 to 10 minutes until browned. Add the mushrooms, shiitake mushrooms, sea salt and thyme. Sauté 5 minutes. Add the water, tomatoes and beans. Cover and bring to a boil. Reduce the flame to medium-low and simmer for 8 to 10 minutes until the potatoes are tender. Add the black pepper and the spinach. Stir and cook 1 minute until the spinach is wilted but still bright green. Serve.
4g fat (19% calories from fat),