Combine Marinade ingredients in small bowl. Reserve 1/2 cup marinade for dressing. Place beef Strip Steaks and 1/3 cup marinade in food-safe plastic bag; turn steaks to coat. Close bag securely and marinate in refrigerator 15 minutes to 2 hours. Reserve remaining marinade for brushing.
Soak two 10-inch bamboo skewers in water 10 minutes; drain. Thread onion wedges onto skewers. Brush onions and cut sides of pears with half reserved marinade.
Remove steaks from marinade; discard marinade. Place steaks on grid over medium, ash-covered coals; arrange onions and pears around steaks. Grill steaks, covered, 11 to 14 minutes (over medium heat on preheated gas grill, 11 to 15 minutes) for medium rare (145°F) to medium doneness (160°F), turning occasionally. Grill onions 12 to 15 minutes (13 to 16 minutes for gas) and pears 8 to 10 minutes (gas grill times remain the same) or until tender, turning occasionally and brushing steak, onions and pears with remaining reserved marinade.
Remove onions from skewers. Chop onions and pears into bite-size pieces. Combine greens, pears, onions, cheese, nuts and reserved 1/2 cup marinade; toss gently to combine. Carve steaks into slices; season with salt, as desired. Serve with salad mixture.
Nutrition information per serving: 385 Calories; 135 kcal Calories from fat; 15 g Total Fat; 5 g Saturated Fat; 4 g Monounsaturated Fat; 74 mg Cholesterol; 658 mg Sodium; 40 g Total Carbohydrate; 5.2 g Dietary Fiber; 29 g Protein; 3.1 mg Iron; 10.8 mg NE Niacin; 0.6 mg Vitamin B6; 1.4 mcg Vitamin B12; 5.3 mg Zinc; 29.9 mcg Selenium; 105.6 mg Choline;