Step 1

Place lamb steaks in a single layer in a shallow dish. Cover with olive oil, garlic, rosemary, salt, and pepper. Flip steaks to coat both sides. Let sit until steaks absorb flavors, about 30 minutes.

Step 2

Preheat an outdoor grill for high heat and lightly oil the grate. Cook steaks until browned on the outside and slightly pink in the center, about 5 minutes per side for medium. An instant-read thermometer inserted into the center should read at least 140 degrees F (60 degrees C).