Bring a large pot of water to a boil for the pasta.
Place a saucepot or deep skillet over medium-high heat with EVOO, 1 turn of the pan. Melt butter into oil and when it foams, add beef and brown and crumble. Season with salt, pepper and oregano or marjoram; add onions and garlic, and cook to soften, about 5 minutes. Add tomatoes, passata and sugar, or tomato sauce. Stir in basil and simmer 15 minutes.