Put the squash in the microwave for about 3-4 minutes in order to soften it up.
3
Using a sharp knife, cut the squash in half lengthwise. Scoop out the seeds and discard. Place the halves with the cut side up on a rimmed baking sheet. Drizzle with olive oil and season with salt, pepper, and oregano. Roast the squash in the oven for 40-45 minutes, until you can poke the squash easily with a fork. Let it cool until you can handle it safely. Then scrape the insides with a fork to shred the squash into strands.
4
While the spaghetti squash is roasting, melt coconut oil in a large skillet over medium heat. Add chopped onion and garlic and cook for 4-5 minutes. Add ground beef and brown the meat, stirring occasionally. Season with salt and pepper. Add the chopped tomato, tomato sauce, and Italian seasoning and stir to combine. Simmer on low heat, stirring occasionally, while the spaghetti squash finishes roasting. Serve over spaghetti squash with basil for garnish.