ShutterstockBolognese is a meat-heavy sauce. âSunday Gravyâ was something many Italian-American children grew up with. Families would throw all kinds of meat into a pot and and let it simmer with tomato sauce, onions, garlic, and bit of olive oil.The resulting meat sauce is very similar to both Neapolitan ragu ragÃ¹ and bolognese. sauceSunday Gravyâ was something many Italian-American children grew up with. Families would throw all kinds of meat into a pot and and let it simmer with tomato sauce, onions, garlic, and bit of olive oil. The resulting meat sauce is very similar to both Neapolitan ragu ragÃ¹ and bolognese. sauce