Heat olive oil in a large skillet over medium-high heat. Season the chicken breasts with salt and pepper, then sear for 2-3 minutes on each side until browned.

Transfer the chicken breasts to the crock pot.

In a small bowl, whisk together ranch seasoning, heavy cream, garlic powder, onion powder, basil, and red pepper flakes.

Pour the mixture over the chicken in the crock pot.

Add chopped sun-dried tomatoes and Parmesan cheese over the top.

Cover and cook on low for 4-6 hours, or until the chicken is cooked through and tender.

Serve the creamy chicken with pasta, rice, or steamed vegetables for a complete meal.