Instant Pot Sunday Sauce

Name: Instant Pot Sunday Sauce
Ingredients: 1 tablespoon olive oil; 2 bone-in beef short ribs (about 2 pounds); 2 country-style pork ribs (about 1 pound); 1 large onion, finely chopped; 6 cloves garlic, finely chopped; 1/2 cup tomato paste; 1/2 cup dry red wine; One 28-ounce can whole peeled tomatoes; 4 links sweet or hot Italian sausage; Kosher salt and freshly ground black pepper; Crushed red pepper flakes, optional; 1 pound ground beef sirloin; 1/2 cup grated Parmesan; 1/4 cup plain breadcrumbs; 1/4 cup milk; 1/4 cup chopped flat-leaf parsley; 2 cloves garlic, grated; 1 large egg; Serving suggestions: pasta or polenta