Begin by preparing your ingredients for the Zuppa Toscana Casserole. Chop 1 medium onion and mince 3 cloves of garlic, slice 2-3 medium potatoes thinly, and chop a handful of kale or spinach.

In a large skillet, heat a tablespoon of olive oil over medium heat. Add the sausage and sauté for about 5-7 minutes until browned. Then, add the onions, garlic, and potatoes, stirring for another 5 minutes.

Pour in 4 cups of broth and 1 cup of cream. Stir and bring to a gentle simmer for about 3-4 minutes.

Preheat your oven to 350°F (175°C). Transfer the mixture to a greased 9x13 baking dish and spread evenly.

Bake for 25-30 minutes until the top is bubbly and golden brown.

Let it cool for about 5 minutes before serving, optionally topped with Parmesan cheese or herbs.