Cook the Pasta

1. Boil Water: In a large pot, bring salted water to a boil.
2. Add Pasta: Add the linguine or spaghetti and cook according to package instructions until al dente.
3. Add Broccoli: In the last 3 minutes of cooking, add the broccoli florets to the pasta pot.
4. Reserve Pasta Water: Before draining, reserve about ½ cup of pasta water.
5. Drain: Drain the pasta and broccoli, and set aside.

Cook the Shrimp

1. Heat Olive Oil: In a large skillet, heat the olive oil over medium heat.
2. Sauté Garlic: Add the minced garlic and red pepper flakes (if using), sautéing for about 30 seconds until fragrant.
3. Add Shrimp: Add the shrimp to the skillet, cooking until pink and opaque, about 2-3 minutes per side. Season with salt and black pepper.

Combine Ingredients

1. Mix Pasta and Shrimp: Add the drained pasta and broccoli to the skillet with the shrimp.
2. Add Lemon: Pour in the lemon juice and zest, tossing everything to combine.
3. Adjust Consistency: If the pasta seems dry, add a splash of the reserved pasta water until you reach the desired consistency.
4. Finish with Cheese: If using, stir in the grated Parmesan cheese for added creaminess.
5. Garnish: Remove from heat and garnish with chopped parsley.