01 - Wash and trim the asparagus, removing woody ends.
02 - In a large skillet, melt the butter over medium heat.
03 - Add minced garlic and sauté while stirring constantly for 30 seconds to avoid burning.
04 - Add asparagus to the skillet and season with salt, black pepper, and red pepper flakes if desired.
05 - Cook asparagus, turning occasionally, for 6 to 8 minutes until bright green and tender-crisp.
06 - Remove skillet from heat, drizzle asparagus with lemon juice, sprinkle with lemon zest, and toss to coat.
07 - Transfer asparagus to a serving platter, garnish with parsley if desired, and serve immediately.