Season the boneless, skinless chicken breasts with salt and freshly cracked black pepper on both sides.
In a large skillet over medium-high heat, add the olive oil. Once hot, carefully place the seasoned chicken breasts in the skillet. Sear for about 6-7 minutes on each side until golden-brown.
Remove the chicken from the skillet and set aside on a plate to rest.
Add minced garlic to the same skillet and sauté for about 30 seconds until fragrant.
Pour in low-sodium chicken broth and scrape up any browned bits. Stir in heavy cream and grated parmesan cheese until well combined.
Fold in sun-dried tomatoes, dried oregano, and crushed red pepper flakes. Allow to simmer for about 5 minutes.
Return the seared chicken back into the skillet and let everything simmer for an additional 10-15 minutes until the chicken is fully cooked.