I'm hesitant to review this because it's a small place and it's kind of a secret, tucked away on Bower Hill road between Scott, Upper St. Clair, and Bridgeville. Alas, I'm a committed Yelper, and this place deserves every bit of 5 stars.
The food is tremendous. Wild Rosemary would be successful anywhere. As Kerry D. mentions, get your reservations weeks ahead. My mom has been trying to get us in while we are in town for a while now and it's always been booked.
They do not serve alcohol, but it's a BYOB situation. I think they charged us like $10 corkage. Totally worth it. Stop by and pick up a great bottle of wine and prepare for a top-notch meal.
I'll attach photos of our plates. You can see the care taken in every plate. At the end of the evening the chef came out and was taking time at every table to introduce herself--a nice touch.
The menu changes, but I think you can check online to see what's offered.
PS: Rocket is a type of arugula salad.