Season the sirloin steaks with salt and freshly ground black pepper on both sides.
Heat a grill or skillet over medium-high heat.
Cook the steaks for about 4-5 minutes per side for medium-rare or until desired doneness.
Let the steaks rest for a few minutes before serving.
Top each steak with a generous dollop of garlic herb butter and let it melt over the hot steak.
Serve the garlic herb butter steaks hot and enjoy!