Vegetable Soup with Tofu

Rinse the cauliflower and broccoli and divide into florets. Peel and chop the carrots and kohlrabi. Peel the asparagus, cut off the ends and cut into pieces. Rinse snow peas and cut into small pieces. Rinse and finely chop green onions. Heat oil in a large saucepan, and sautée scallions. Pour in broth and bring to a boil. Add vegetables (except for asparagus and snow peas) and cook for 20-30 minutes. In the last 6-8 minutes of cooking time, add the asparagus and snow peas and cook. Cut tofu into pieces and add to the soup. Season with salt and pepper and serve.