Step 1

Heat up your pressure cooker: press Sauté -> click on the Adjust button -> select More to get the Sauté More function, which means that the food will be sautéed over medium-high heat. Wait for the Instant Pot indicator to read HOT.

Step 2

Add the oil to the hot Instant Pot, add the diced onions and minced garlic, and sauté for 2-3 minutes, stirring a few times.

Step 3

Add the carrots (plus celery if using) and cook for 1 minutes. Add the tomato paste and cook for another minute.

Step 4

Add the rest of the ingredients to the Instant Pot, except those listed in the "Garnish" section. Stir.

Step 5

Using manual function, set to high pressure for 9 minutes .

Step 6

After 9 minutes, use quick release. Stir.

Step 7

Serve topped with scallions, parsley and mozzarella cheese. Serve with crusty, warm bread on the side or grilled cheese.