This is pretty easy. Halve pears, then scoop out the core with a melon scoop. Cut a bit off the bottom of each half so they sit in the baking dish. I put some lemon juice on the cut edges of the pear to keep them from turning brown.
Fill the pears with a mixture of dried cranberries, chopped walnuts, and blue cheese. I used some cheddar/blue slices that I had on hand. I poured some marsala, water, and apple jelly into the baking dish. I baked them until the pears were tender and the cheese was melted.
I served them on lettuce, with a dressing made from the cooking liquid, olive oil, some aged balsamic vinegar, and a pinch of salt.