Grilled Steak and Fresh Mozzarella Flatbread

Ingredients (7)

• + 1 pound beef top sirloin center filets, cut 1 inch thick, tied add to pantry
• + 1 ½ teaspoons lemon pepper add to pantry
• + 2 cups packed fresh baby spinach add to pantry
• + ¼ pound fresh mozzarella cheese, cut into 1/2 inch pieces add to pantry
• + 2 tablespoons chopped fresh basil add to pantry
• + 1 ½ teaspoons balsamic vinegar add to pantry
• ✓ 4 each naan breads (Indian flatbread) or pita breads