I made a caramelized onion and roasted mushroom soup a couple months ago. I adapted the recipe from the new Dietitians of Canada cookbook entitle " Cook! - celebrate food from field to table". This cookbook is has a lot of great nutritional information and some recipes that I am excited to try. I am pretty sure I bought it at Costco, although it can also be purchased online from http://www.dietitians.ca/Store.aspx
or loan it for free from any Saskatchewan Library!

Here is the recipe (I suggest doubling).....

1 lb (454g) cremini mushrooms
2 tbsp oil
4 sprigs fresh rosemary, divided
4 sprigs of thyme, divided
1 tsp ground black pepper (or more, to taste)
2-4 cups of coarsely chopped yellow onions
2 tbsp oil or butter
3-4 lrg coarsely chopped shallots (get a huge bag at the Eastern Market for cheap! and while you there I would suggest some "Mother's Best"  soy sauce and fish sauce and maybe some bamboo steamers for that special someone, or as a X-mas gift/new year's resolution.
1/4 cup Marsala wine (or 1/4 cup grape juice + 1 tsp of honey, to substitute)
4 cups low-sodium chicken or vegetable broth
1 bay leaf

Preheat to 425F. On a cookie sheet, sprinkle oil and spice over the mushrooms. Bake for 25 minute or until mushrooms are golden brown.  Meanwhile, fry up the onions, on mediumish, until the onions are caramelized and smell delicious. Add the wine and scrape the pot really well to get all the caramelized onions off the bottom. Add everything else and bring to a boil. Reduce heat and simmer for at least 15 minutes (or a couple hours). Get rid off the bay leaf and sprigs before you devourer! Freeze or can the left overs.

Mushrooms is the sole vegetable source of vitamin D and vitamin D is awesome in so many ways! |My favourite vitamin by far.  Vit D has become increasingly popular because of the newly discovered roles it plays intracellularly at higher doses then currently recommended. It's a challenge to get enough vitamin D from diet alone, unless sockeye salmon is a daily affair for you, so I would suggest a daily supplement of atleast 1000 IU (25 ug) per day for most, taken at a well balanced meal to enhance absorption.