Looks and tastes fancy. Only takes 30 minutes to make.
In large pot, heat oil over medium. Add lamb, onion, garlic, and oregano. Cook, stirring often, until lamb browns, 10 to 12 minutes. Add tomatoes, with juices, and olives; season with salt. Cook, stirring occasionally, until flavors meld, about 10 minutes. Transfer spaghetti to serving bowl; toss with sauce. Top with basil and cheese.
Can’t find basil? Parsley or even mint would be great with the ragu.