A super easy and heart warming clean-out-the-pantry dinner. Also works great for brunch!
In a large nonstick skillet with tall edge, heat 1 tablespoon olive oil on medium-high heat. Sauté onion for about 5-7 minutes, until soft.
Top with freshly shredded parmesan, chopped parsley and an extra drizzle of olive oil prior to serving. Serve alongside crusty bread.
I do not recommend using a cast-iron skillet for this dish, as cast irons are not able to withstand the acidity from the tomato sauce. A large non-stick skillet is best, with tall edges so it can hold all the sauce in. If you don't have one, a very large skillet or even a big pot will do.