Here's a possible pressure-cooked substitute (see my article http://www.kuro5hin.org/story/2009/4/10/222954/151) that will take maybe 1/10th the effort.
In a large pressure cooker, melt the margarine. Add onions cut in a reasonably long manner (around 1/3 inch wide, and as long as you can easily cut them) use yellow onions; they caramelize best). Add 2/3 of your garlic (I prefer the frozen minced garlic cubes at trader joe's), add salt (to draw out oils), and fry the hell out of it, while stirring constantly, for a few minutes. This will give you your onion and roasted garlic flavor. Really, be vicious with the frying, but just make sure you stir constantly.
Add veggie stock, thyme, bay leaf, and the rest of the garlic, and pressure-cook for maybe 10 minutes.
Add wine, pepper and salt (to taste), and/or other spices. Simmer for about 10 minutes to develop a bit of subtlety in the flavor.
Do what he suggests with toast and cheese.
Behold: a meal that's 90% as good as the one described above, in 20% of the time. And, naturally, organic ingredients make no difference (tho fresh herbs and quality bay leaves can help a bit.)
Note that 80% of your friends' experience will be due to the way that you place the cheesy toast on the soup, and then the way that the cheese looks a little burnt. Presentation is everything; spending 4 hours slowly roasting the veggies is unnecessary.
-The bus came by, I got on... that's when it all began.