Set Instant pot/pressure cooker to saute mode. Add Italian sausage and ground beef. Cook, stirring to crumble until it begins to brown.
1/2 pound ground Italian sausage, 1/2 pound ground beef
Add onion and garlic. Cook for 1-2 minutes, stirring to combine with meat. Add Italian seasoning, salt and pepper. Stir.
1 onion,, 8 cloves garlic,, 1 Tablespoon Italian seasoning, Salt and pepper to taste
Stir in carrots, tomatoes with juice, kidney beans, white beans, bay leaves, broth and pasta. Place rosemary sprigs in broth.
1 1/2 cup carrots,, 2 sprigs fresh rosemary, 14.5 ounce fire roasted diced tomatoes,, 15 ounce kidney beans, , 15 ounce white beans,, 2 bay leaves, 4 cups broth (chicken bone or vegetable), 1 cup ditalini pasta
Close lid and set to manual high pressure for 5 minutes. After the pressure sets and it cooks for 5 minutes (total about 15 minutes), let pressure naturally release for about 5 minutes. Then, manually release remaining pressure being careful to avoid the steam.
Top with shaved Parmesan and season with salt and pepper if desired.