Heat olive oil in a large skillet over medium heat.
Season the chicken thighs with salt, pepper, and Italian seasoning.
Sear the chicken thighs for 5-6 minutes on each side until golden brown.
Remove the chicken from the pan and set aside.
In the same skillet, add minced garlic and sliced bell peppers, sauté for 3-4 minutes.
Stir in the sun-dried tomatoes and cook for an additional 2 minutes.
Pour in the heavy cream and bring to a simmer.
Add spinach and stir until wilted.
Return the chicken to the skillet, cover, and simmer for 10-15 minutes.
Garnish with fresh basil before serving.