Grilled Romaine Salad

Saw this on a Food Network show called "Guy's Big Bite. It looked so good, I had to try it. The mix of flavors is wonderful!

• Ready In: 20 mins
• Serves: 6

Ingredients

• 6  heads romaine lettuce hearts
• 1⁄2 lb bacon
• 1  small red onion, diced
• 2  tablespoons olive oil
• 1⁄2 cup  balsamic vinegar
• 1⁄4 cup blue cheese, crumbles
•  fresh ground black pepper

Directions

1. Cut bacon into small pieces.
2. Add 1 Tbs olive oil to a large skillet on med-high heat.
3. Add bacon to the pan. When it has started to cook and render down, add onions.
4. Cook, stirring frequently until onions and bacon are done. Be careful not to burn.
5. Carefully pour the vinegar into the pan and stir to deglaze the pan. Simmer for a few minutes, or until liquid is decreased by half. Turn heat down to lowest possible setting, just to keep warm.
6. Cut lettuce in half lengthwise. Brush cut side with remaining olive oil (or hit it with a spray from a can).
7. Place lettuce, cut side down on a hot grill for 2-3 minutes, just long enough to char it lightly.
8. Remove from grill, and place cut side up on serving platter. Spoon the bacon mixture over the lettuce, dividing it evenly.
9. Sprinkle blue cheese over lettuce.
10. Add the black pepper to taste.
11. Serve immediately.