Pre-heat the oven to 400 degrees.
Chop all vegetables (ingredients 1-6) and put them in a large bowl with cashews.
In a small bowl or measuring cup, add dijon mustard, soy (tamari), dill, and seasonings.
Whisk together and pour over raw vegetables.
Stir the dijon/soy mixture into the vegetables.
Then, pour the coated vegetables into a casserole pan, and cover.
DO NOT ADD THE VEGETABLE BROTH.
Bake (roast) for 1 hour.
Remove from the oven, and remove the cover.
Let cool completely.
Add cooled roasted vegetables/cashews to a high-speed blender and add 4 cups of the vegetable broth. Or, blend in small batches; 1 cup roasted vegetables and 1 cup vegetable broth at a time.
Blend until smooth.
Transfer to a soup pot, and add the additional 2 cups of vegetable broth.
Heat on medium-low until hot and ready to serve.
Garnish with grated carrots, parsley, and dill.