Preheat your oven to 400°F (200°C).
In a baking dish, combine the olive oil, minced garlic, heavy cream, chicken broth, sun-dried tomatoes, Italian seasoning, smoked paprika, and red pepper flakes.
Season the chicken breasts with salt and pepper, and nestle them into the sauce mixture in the baking dish.
Bake uncovered for about 20-25 minutes, or until the chicken starts to brown on top and is mostly cooked through (the internal temperature should be around 155°F or 68°C at this point).
Remove the baking dish from the oven, and quickly scatter the fresh spinach around the chicken. Return the dish to the oven and bake for an additional 5-10 minutes, or until the spinach is wilted, the sauce is bubbly, and the chicken's internal temperature reaches 165°F (75°C).
If you desire more browning, broil the chicken for 2-3 minutes at the end, but watch it closely.
Let the dish rest for a few minutes out of the oven before serving. Garnish with fresh parsley and extra red pepper flakes if desired.