Just a great presentation, as it is served in the shell. If you cut a little slice off the bottom of the squash before baking it will sit flat. I enjoy squash anyway it is prepared, but this brought many smiles.
Cut squashes in half lengthwise. Remove seeds and bake for 30-35 minutes at 350F. Meanwhile, saute mushrooms, onion, and garlic in a lightly oiled skillet until ingredients are lightly browned. Combine with herbs, chicken stock and cooked rice. Set aside.
Remove pulp from cooked squash and transfer to a large mixing bowl. Blend in the vegetable-rice mixture and spoon into each squash shell. Sprinkle with freshly ground pepper, paprika, and a little more parsley. Bake at 350F for 25-30 minutes, or until heated through.