Mince garlic on a cutting¬†board. Sprinkle garlic with¬†salt; mash with the side of¬†a knife to form a paste.¬†Combine garlic paste,¬†1 tablespoon oil, rosemary,¬†rind, and 1‚ĀĄ4 teaspoon pepper¬†in a bowl. Rub garlic¬†mixture evenly over steak.¬†Let stand 15 minutes.
Heat a grill pan over¬†medium-high heat. Coat¬†pan with cooking spray. Add¬†steak to pan; grill 5 minutes¬†on each side or until desired¬†degree of doneness. Place¬†steak on a cutting board; let¬†stand 5 minutes. Cut across¬†the grain into thin slices.
¬†Combine remaining¬†1 tablespoon oil, remaining¬†1‚ĀĄ4 teaspoon pepper, vinegar,¬†and Dijon mustard in a¬†bowl, stirring with a whisk.¬†Add greens; toss to coat.
Place 11‚ĀĄ2 cups salad on each¬†of 2 plates; top each serving¬†with 31‚ĀĄ2 ounces steak and 1¬†tablespoon Parmesan cheese