Heat olive oil in a saucepan, add orzo, and toast until lightly golden. This enhances its nutty flavor. Pour in boiling stock, cover, and simmer for 15 minutes. Fluff gently with a fork.
In a skillet, heat olive oil and sauté minced garlic until fragrant. Add shrimp and cook for 2–3 minutes per side until pink and opaque. Deglaze the pan with white wine and lemon juice, then simmer briefly.
Add butter and fresh spinach to the shrimp, stirring until wilted and glossy. Spoon the shrimp and sauce over the cooked orzo. Garnish with chopped parsley and freshly cracked black pepper. Serve immediately for best flavor.