Heat the olive oil in the instant pot in the saute mode on normal. Add the onions and cook, stirring occasionally until golden. Add the garlic and cook stirring until it starts to brown. Add the ground beef and the ground pork. Season lightly with salt. Cook, stirring to break up the meat until the meat changes color and the water it gives of is boiled away about 10 minutes.
Continue cooking until the meat is browned about 5 minutes. Add the bay leaves, fennel and oregano, then pour in the wine. Bring to a boil and cook, scraping up the brown bits that cling to the pot until the wine is almost completely evaporated.
Pour in the tomato puree, then stir in the tomato paste until it is dissolved. Season lightly with salt.
Place the lid on and set for 35 minutes. When finished, do a quick release. Skim off the fat and check the seasoning. Add salt if needed. Serve over your favorite pasta.
Keyword Instant Pot, Italian, italian-american, meat sauce, meat sauce with pasta