Created by Puppitypup on October 22, 2014
Step 1: You'll need a heavy skillet with a lid. Or the widest saucepan you have.
Step 2: Preheat pan, brush with oil and saute onions and mushrooms. I season as I go, so I toss in a pinch of kosher salt. Remove to bowl and set aside.
Step 3: In same pan, add another teaspoon oil and sausage, breaking sausage up with a potato masher. After sausage is browned, add back vegetables.
Step 4: Stir in tomato paste and cook 2 minutes. Then add remaining ingredients, except parmesan. Bring to a good simmer, then reduce heat and stir in parmesan. Taste and adjust seasonings.
Step 5: You can either serve now or continue to simmer, covered, on low. Serve over pasta.