Turn Instant Pot to "saute" function and allow it to heat up. Once hot, add butter, onion, garlic, red bell pepper, oregano, and salt and pepper to taste.
Saute for a few minutes or until onion is softened, then add in the chicken stock, canned tomatoes, and chicken breast. Put the lid on and cook using 'High Pressure' for 10 minutes.
Once finished, allow the Instant Pot to naturally depressurize. Remove the chicken breast from the pot, shred and set aside.
Using an immersion blender, blend together the soup until smooth.
Add heavy cream to the soup and stir well to mix.
Add the shredded chicken back into the soup and allow chicken to soak up the flavor for a few minutes.
Serve with fresh basil sprinkled over the top. Enjoy!
Notes
This makes a total of 3 servings of Keto Creamy Chicken Tomato Soup. The serving comes out to be 634 calories, 42.7g fats, 10.3g net carbs, and 46.9g protein.