Heat grill to medium. Cook farro according to package directions.
Season steaks with Aleppo pepper, 1/2 tsp salt, and 1/4 tsp black pepper. Grill for 5–8 minutes per side to desired doneness. Transfer to a cutting board and let rest at least 5 minutes before slicing.
In a medium bowl, whisk together lemon zest, lemon juice, shallots, and 1/2 tsp each of salt and pepper. Let sit for 5 minutes.
Stir olive oil into the lemon mixture, then toss with cooked farro.
Fold in olives, parsley, and mint. Serve salad alongside sliced steak.