Pat the shrimp dry with paper towels. Season with salt and pepper.
In a large skillet, heat olive oil. Use medium-high heat.
Add shrimp to the skillet in one layer. Sear for 1-2 minutes per side. Remove and set aside.
Melt the butter over medium heat. Add minced garlic and cook until fragrant.
Add sun-dried tomatoes and cook for 2 minutes.
Pour in the heavy cream. Bring to a gentle simmer. Reduce heat to low.
Stir in the Parmesan cheese, oregano, and flakes. Stir until the sauce thickens.
Add fresh spinach to the sauce. Stir until the leaves wilt.
Return the cooked shrimp to the skillet. Toss to coat in the sauce. Heat through.
Garnish with fresh parsley and serve immediately.