Heat a large cast iron skillet to medium heat. Add two tablespoons cooking oil. Saute carrots, onions, zucchini, celery and sweet peppers until caramelized, about 25 to 30 minutes.
raw veggies on the left. Veggies sauteed for 25 minutes on the right.
Raw veggies on the left. Veggies sautéed for 25 minutes on the right.
Add cooked veggies, stock and tomatoes to soup pot. Turn the heat under the skillet up to medium high. Add sausage and ham. Cook until sausage is browned and crumbled. Pour contents into soup pot. Deglaze pan with red wine vinegar and add to pot.
Add garlic powder to soup and stir well. Simmer on low for one hour.
Garnish with parmesan cheese.