Sprinkle the insides with a pinch of salt and 1/8 teaspoon pepper.
Place in a 8-inch-square (or similar-size) microwave-safe dish.
Meanwhile, heat 1 tablespoon oil in a medium skillet over medium heat.
Add leek, celery and mushrooms.
Cook, stirring occasionally, until beginning to brown, about 5 minutes.
Add garlic and cook, stirring, for 1 minute.
Add wine and cook, stirring, until mostly evaporated, about 1 minute more.
Add wild rice, bread cubes and herbs.
Stir in broth and the remaining 1/4 teaspoon salt and 1/8 teaspoon pepper.
Cook, stirring, until heated through and the broth is absorbed; about 1 minute.
Position rack in center of oven; preheat broiler.
Fill each squash half with the stuffing mixture (about 1 cup each).
Place in a baking pan or on a baking sheet.
Drizzle the stuffing with the remaining 1 tablespoon oil.
Broil in the center of the oven until the stuffing is beginning to brown, 2 to 4 minutes.
- Daily Values (DVs) are the recommended amounts of nutrients to consume each day.
(-) Information is not currently available for this nutrient.