Recipes Side Dish Vegetables Greens Grilled Hearts of Romaine 4.7 (49) 39 Reviews 12 Photos This is truly and ridiculously easy. The trick is to get the grill grates very hot. And the result? A lightly caramelized surface and a slightly smoky flavor. The insides stay cool and crisp. It's quite a contrast of tastes and textures. By John Mitzewich John Mitzewich John Mitzewich — aka Chef John — has produced more than 1,500 cooking videos for Allrecipes. He's the actor, director, and screenwriter whose hands and voice confidently walk you through techniques. Allrecipes' editorial guidelines Updated on April 29, 2024 Tested by Allrecipes Test Kitchen Tested by Allrecipes Test Kitchen The Allrecipes Test Kitchen staff are a team of culinary pros who make and vet recipes using only equipment you'd find in a home kitchen. Staff credentials vary but include training at the Culinary Institute of America; kitchen stints in fine dining restaurants; and countless hours in the test kitchen itself. Meet the Allrecipes Test Kitchen Save Rate Print Share Add Photo 12 12 12 12 Prep Time: 10 mins Cook Time: 5 mins Total Time: 15 mins Servings: 6 Yield: 6 servings Jump to Nutrition Facts Cook Mode (Keep screen awake) Ingredients 1x 2x 4x Oops! Something went wrong. Our team is working on it. Original recipe (1X) yields 6 servings 3 romaine lettuce hearts, halved lengthwise 1 tablespoon olive oil, divided, or as needed 2 tablespoons freshly grated Parmigiano-Reggiano cheese, or to taste 2 tablespoons balsamic vinegar, or to taste 2 tablespoons sherry vinegar, or to taste 2 tablespoons olive oil, or to taste Directions Preheat an outdoor grill for high heat, and lightly oil the grate. Brush each romaine lettuce half with 1/2 teaspoon olive oil. Cook romaine hearts, cut-side down, on the preheated grill until the cut-side is slightly caramelized but the inside is still cool and crisp, about 2 minutes. Transfer lettuce, cut-side up, to a platter. Sprinkle Parmigiano-Reggiano cheese over lettuce and drizzle balsamic vinegar, sherry vinegar, and 2 tablespoons olive oil over the top. France C I Made It Print 107 home cooks made it! Nutrition Facts (per serving) 88 Calories 8g Fat 4g Carbs 2g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 6 Calories 88 % Daily Value * Total Fat 8g 10% Saturated Fat 1g 7% Cholesterol 2mg 1% Sodium 35mg 2% Total Carbohydrate 4g 2% Dietary Fiber 2g 8% Total Sugars 2g Protein 2g 4% Vitamin C 24mg 27% Calcium 54mg 4% Iron 1mg 6% Potassium 257mg 5% * Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs. ** Nutrient information is not available for all ingredients. Amount is based on available nutrient data. (-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.