In a large Dutch oven, brown the ground beef and hot Italian sausage.
Add the chopped onions and garlic, and cook till the onion is translucent.
Pour in the passata and stir to combine. Add the basil and oregano. Stir to combine.
Tuck the bay leaf and Parmiggiano-reggiano rind into the sauce. Turn the heat to medium low and simmer 30 minutes to an hour, uncovered. If simmering longer, cover to cook, then take the lid off about 30 minutes before serving so that the water can evaporate.
Cook the spaghetti according to package directions.
Serve with plenty of freshly grated cheese.
Keyword meat sauce, pasta, spaghetti, spaghetti and meat sauce