Heat olive oil in a large skillet over medium heat.
Season the chicken breasts with salt and pepper.
Cook the chicken for 6-7 minutes on each side until golden brown.
Remove the chicken from the skillet and set aside.
In the same skillet, add garlic and sauté until fragrant.
Add sun-dried tomatoes and cook for 2 minutes.
Pour in the heavy cream and bring to a simmer.
Stir in the Parmesan cheese and oregano.
Return the chicken to the skillet, coating it with the sauce.
Cook for an additional 5-10 minutes, until chicken is cooked through.