Grilled Beef, Summer Squash and Onion Salad

Ingredients

• 2 steaks beef Strip Steak Boneless
• 1/4 cup balsamic vinegar
• 1/4 cup olive oil
• 1 large clove garlic, minced
• Salt and pepper
• 2 teaspoons garlic-pepper seasoning, divided
• 1 medium red onion, cut into 12 wedges
• 1 medium yellow squash, cut lengthwise in half
• 1 medium zucchini, cut lengthwise in half
• 8 cups mixed salad greens