Spring Greens Soup – French Women Don't Get Fat

Ingredients

• 1 tsp olive oil
• 1 TB butter
• 2 cups vegetable or chicken broth (or water)
• 1 small onion, peeled & sliced
• 8 oz Yukon gold potatoes, sliced
• 2 cups mushrooms, sliced
• 2 cups fresh spinach
• 2 cups fresh arugula
• 2 cups parsley, chopped
• Salt and freshly ground pepper