Grilled Romaine Hearts With Champagne-Mustard Vinaigrette

Ingredients (8)

• 0.25 tsp salt
• 2 tbsp olive oil
• 1 clove garlic finely minced
• 1 tsp Dijon mustard
• 1.5 tbsp white balsamic or champagne vinegar
• 2 bunch romaine lettuce
• 1 nonstick cooking spray
• 0.25 tsp black pepper