Step 1

In a 6-qt. Instant Pot multicooker combine onions, beans, and garlic. Stir in 3 cups water.

Step 2

Lock lid in place; set pressure valve to Sealing. Set cooker on Bean setting and cook 35 minutes. Let stand to release pressure naturally (about 20 minutes). Open lid carefully.

Step 3

Stir in the next nine ingredients (through oregano). Set cooker on Sauté setting and Low temperature. Cook, uncovered, 10 minutes. Stir in pasta, tomato paste, and 3 cups hot water. Cook, uncovered, 10 minutes more or until pasta is tender but still firm (add 1 cup hot water if necessary). Season with salt and pepper.