In a large skillet, heat the olive oil over medium heat. Add the minced garlic and red pepper flakes, sautéing for about 1 minute until fragrant.
Add the shrimp to the skillet and season with salt and pepper. Cook for approximately 2-3 minutes on each side, or until the shrimp turn pink and are cooked through. Remove the shrimp from the skillet and set aside.
In the same skillet, add the orzo and toast for about 2 minutes, stirring frequently.
Pour in the vegetable or chicken broth and bring to a gentle boil. Reduce heat and simmer for about 8-10 minutes, stirring occasionally, until the orzo is al dente and most of the liquid is absorbed.
Stir in the lemon juice, zest, and the cooked shrimp into the orzo. Mix well until everything is combined and heated through.
Remove from heat, and fold in the chopped parsley. Adjust seasoning with more salt and pepper if needed.
Notes
Serve in a large pasta bowl, garnished with parsley and Parmesan cheese. Add lemon slices for decoration.