Portobello Mushrooms with Spinach, Goat Cheese, and Easy Onion Jam

Portobellos are extra-large chestnut mushrooms, often measuring 4-5 inches in diameter. They’re ideal for stuffing! To me, the combination of goat cheese, spinach, and onion jam is unbeatable. I recommend Gorgonzola if you like a stronger flavor, Camembert if you prefer something milder. I like to serve these portobellos with a mix of white and wild rice.