Begin by cooking the orzo according to package instructions until al dente. Drain and set aside, reserving a little pasta water for later.
In a large skillet, heat 2 tablespoons of olive oil over medium heat. Add the minced garlic and sauté for about 1 minute until fragrant, being careful not to burn it.
Increase the heat to medium-high and add the shrimp to the skillet. Cook for about 2-3 minutes on each side or until they turn pink and opaque.
Add the halved cherry tomatoes and chopped spinach to the skillet. Stir gently until the spinach wilts and the tomatoes begin to soften, about 2-3 minutes.
Pour in the lemon juice and add the lemon zest, mixing everything well. If the mixture seems dry, add a splash of the reserved pasta water.
Add the cooked orzo to the skillet, followed by the remaining tablespoon of olive oil and the red pepper flakes (if using). Stir until everything is well combined.
Season with salt and black pepper to taste.
Remove from heat and garnish with fresh parsley before serving.
Notes
Serve the orzo in shallow bowls, garnished with extra lemon wedges and a sprinkle of parsley for a fresh look.