Grilled Steaks & Asparagus With Rosemary Garlic Butter

Name: Grilled Steaks & Asparagus With Rosemary Garlic Butter
Cuisine: American
Ingredients: 3 tbsp (45 mL) butter, softened; 2 tsp (10 mL) finely chopped fresh rosemary; 1 garlic clove, pressed; 2 boneless New York strip steaks, 1–1½" (2.5–4-cm) thick (8–10 oz./250–283 g each); 1¼ tsp (6 mL) salt, divided; ½ tsp (2 mL) black pepper; Oil for brushing; 1 bunch asparagus, trimmed; ½ small lemon