This simple recipe involves roasting spaghetti squash in the oven and serving it with a homemade marinara sauce. To make the marinara sauce, sauté garlic and onion in olive oil, add canned tomatoes, and season with salt, pepper, and Italian herbs. Simmer the sauce for 20-30 minutes until it thickens. Once the spaghetti squash is cooked, use a fork to scrape out the flesh into spaghetti-like strands. Serve the squash with the marinara sauce on top and garnish with fresh basil and grated Parmesan cheese.