Turn Instant Pot onto sauté setting. Give the pan a heavy spray of non-stick spray. Add ground meat.
As it cooks, break up the meat with a spoon or spatula. Brown meat so fully cooked.
Drain off grease if needed. You won’t need to drain if you use an extra-lean ground meat.
Add the chopped onion and celery to meat. Cook for three minutes.
Mix in peppers and stir. Turn off heat.
Add broth, tomato puree and rest of ingredients. Stir mixture.
Cook on pressure for 7 minutes. It’ll take about 20 minutes to reach pressure.
Natural release for 10 minutes, then do a quick release. I like to put a towel over top in case it sprays.
Open cover. Give it a good stir, then taste to check the flavor. Adjust the salt, pepper, red pepper flakes as needed.
Fill a soup bowl with about 1 ½ cups of the soup mixture and top with 1/2 cup of rice of choice (or a small pasta). Mix. Add a sprinkle of grated parmesan or Romano cheese. Viola!