So I added onions, mushrooms, celery, carrots, zucchini and peppers. I use my food processor to cut the veggies down as much as possible. Once they are at the right size I place them in a super hot Dutch Oven and sauté them in very hot oil. Because the pot is going to be full of veggies you will not be able to sauté all of them at one time, it is just to give the veggies some extra flavor. Once the veggies have been in there for awhile add the sauce. Once the sauce has been added I let it simmer for at least 5 hours that way you know that the veggies are soft and pliable.
Once I am ready to serve the sauce I add one container of mascarpone cheese. This allows the sauce to gain an extra depth of flavor and makes the sauce a lot creamier. This is a house favorite.
The bowl of veggies before I chopped them up.
The veggies in the pot before I had the sauce
The sauce is complete now the last step is to add mascarpone cheese.