This vegan spaghetti squash with mushroom marinara sauce is a delicious and healthy alternative to traditional pasta dishes. The spaghetti squash is roasted until tender and then the flesh is scraped into strands, resembling spaghetti noodles. The mushroom marinara sauce is made with sautéed mushrooms, garlic, onions, and tomato sauce, creating a rich and flavorful topping for the squash. This dish is not only vegan, but also gluten-free and low in calories, making it a perfect option for those looking for a lighter meal.