Place the squash on a parchment lined baking sheet and drizzle each half with 1/2 tablespoon of olive oil. Sprinkle with salt to taste. Flip the squash so it’s flesh side down and bake for 40-45 minutes or until it’s tender.
Meanwhile, heat a sauté pan over medium heat. Add the celery, apple, scallion and rosemary and cook until fragrant (about 3-4 minutes). Add the brown rice and lentils, pecans, raisins and salt. Cook for additional 3-4 minutes, then set aside.
When the squash is done, spoon the rice mixture into each open half. Serve immediately.