Using a small paring knife, carefully trim around the stem on the underside of the mushroom. Gently loosen the stem from the cap. Chop the stems and place in a medium sized bowl. Set the stems aside.
With a small teaspoon, scrape the dark gills from the underside of the mushroom cap, exposing the pale light flesh below. Throw away the gills. (They are edible but if you add them to your rice mix, it might take on an unappetizing color).
For the Rice
In a small-medium sized saucepan, heat the olive oil. Add the pancetta and saute for approximately 3 minutes until lightly crisp. Use a slotted spoon to remove the pancetta from the pan to a paper towel lined plate to drain. Set aside. Leave the oil in the pan.
To the heated oil, add the chopped onion, salt and pepper and cook until the onions are lightly browned, about 5 minutes.
Add the wild rice and saute until toasted approximately 2 minutes.
To the wild rice, add the chicken broth (or water), butter and season with salt and pepper. Cover with a tight lid and lower the heat to a very low simmer. Cook according to package directions (typically 45 minutes).** SEE NOTE BELOW
Meanwhile, put the diced sweet potato on a baking sheet, drizzle with olive oil and season with salt and pepper and roast for about 20 minutes while the rice is cooking until golden. Remove from oven and add to the bowl with the chopped mushroom stems
Once the rice has finished cooking, toss it with the most of the pancetta (leave some for garnishing), the sweet potatoes and chopped mushroom stems. Add the fresh sage and half the goat cheese. Season to taste (approx 1 tsp of salt and 1/2 teaspoon pepper).
Assemble the Mushrooms
Fill each mushroom with 1/4 of the filling. Sprinkle each mushroom with some of the remaining goat cheese and pine nuts.
Bake at 400° for 10 minutes until the goat cheese is browned and the mushrooms are warmed through.
While the mushrooms are baking, stir up the glaze ingredients in a small bowl and drizzle over the mushrooms liberally before serving.
Sprinkle with some fresh sage, some pancetta and extra pine nuts.
Notes
Notes:
You can use a quick cooking wild rice (like Uncle Ben's). Just follow the instructions on the package for cooking times.
Vegetarian option: leave out the cheese and pancetta.
Alternative additions:
brown rice
butternut squash
dried cranberries
slivered almonds
fresh thyme
vegan chorizo or sausage
tofu
Make Ahead:
Cook the rice and roast the sweet potato ahead of time. Toss with sage, seasonings and goat cheese. You might need a little bit of chicken broth drizzled in to moisten the rice.
Storing/Reheating
Refrigerate in a covered container.
Reheat according to baking instructions above or in the microwave on a paper towel lined microwave-safe plate for approximately 2 minutes.