Heat the large skillet over medium heat. Add the unsalted butter and allow it to melt.
Once the butter is melted, add the minced garlic and red pepper flakes (if using) to the skillet. Sauté for about 1-2 minutes, or until the garlic is fragrant but not browned.
Add the peeled and deveined shrimp to the skillet. Season with salt and black pepper to taste. Cook for 3-4 minutes, stirring occasionally, until the shrimp are pink and opaque.
Reduce the heat to low and sprinkle the grated Parmesan cheese over the shrimp. Toss to coat the shrimp evenly in the cheese.
Squeeze the lemon juice over the shrimp and sprinkle with fresh parsley.
Serve immediately on a plate and enjoy!
For added flavor, you can marinate the shrimp in olive oil, garlic, and lemon juice for 15-30 minutes before cooking.
This dish pairs well with pasta, rice, or a fresh salad for a complete meal.
Adjust the level of red pepper flakes based on your spice preference.