First, season the thawed, dried shrimp with the reserved sun-dried tomato oil, salt, pepper, and smoked paprika. Sear in medium heat just until pink and cooked through, then remove and set aside.
In the same pan, melt butter and sauté minced garlic with red chili flakes briefly until fragrant. Add chicken broth, heavy cream, sun-dried tomatoes, Italian seasoning, and orzo. Bring it to a simmer.
Reduce heat and cover, letting the orzo cook until tender (about 10 minutes). Then stir in Parmesan and spinach until creamy and wilted. Return shrimp to the pan and stir gently until everything is heated through.