Add the olive oil and onion to a large pot over medium heat.
Allow to sauté for about 3 minutes, then add in the red pepper, carrots, and garlic.
Saute for an additional 3 minutes.
Add in the raw chicken breasts, broth, parsley, thyme, red pepper flakes, salt, and pepper.
Allow mixture to simmer for about 15-20 minutes, or until chicken is cooked through.
Remove chicken and shred using two forks.
Place chicken back into soup mixture and add in the tortellini.
Stir well and allow to cook for about 10 minutes.
Remove from heat and stir in the heavy cream and spinach. Add additional salt and pepper if desired.
Serve and enjoy!