SandwichesCheeseLunchEasy MealsMushroomsFontina Cheese and Mushroom Sandwiches Diana Updated on February 26, 2024January 19, 2024 Leave a Comment on Fontina Cheese and Mushroom Sandwiches1 min read Melty fontina cheese, fresh sliced mushrooms, and a little balsamic vinegar and sage make up the filling for these delicious grilled cheese and mushroom panini sandwiches.