Everyday Cooking Vegetarian Main Dishes Mushrooms Portabella Mushroom Burgers from Reynolds Wrap® Be the first to rate & review! 2 Photos Grilled portabella mushrooms and provolone cheese are served on buns with a creamy mustard sauce. Submitted by Reynolds KitchensR Updated on September 26, 2022 Save Rate Print Share Close Add Photo Cook Time: 6 mins Total Time: 6 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 1 sheet Reynolds Wrap® Non-Stick Aluminum Foil 3 tablespoons butter, melted 2 cloves garlic, minced 6 large portabella mushrooms 6 slices provolone cheese 6 hamburger buns Sauce: 1 cup light sour cream 2 tablespoons red wine vinegar ¼ cup Dijon mustard 2 teaspoons sugar ⅛ teaspoon cayenne pepper Directions Preheat grill to medium-high. Make drainage holes in a sheet of Reynolds Wrap® Non-Stick Aluminum Foil with a large fork; set aside. Combine butter and garlic. Baste mushroom caps with mixture. Place foil on grill grate with non-stick (dull) side facing up. Immediately place mushrooms on foil. Grill uncovered 6 to 8 minutes, turning once, until mushrooms are browned and tender. Place 1 slice of cheese on each mushroom during the last minute of grilling. Combine sour cream, vinegar, mustard, sugar and pepper in small microwave-safe bowl to make sauce. Microwave on HIGH power 30 seconds or until warm. Serve sauce over burgers in buns. Add lettuce and tomato, if desired. I Made It Print Nutrition Facts (per serving) 325 Calories 16g Fat 32g Carbs 14g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 6 Calories 325 % Daily Value * Total Fat 16g 20% Saturated Fat 9g 45% Cholesterol 41mg 14% Sodium 846mg 37% Total Carbohydrate 32g 12% Dietary Fiber 1g 4% Total Sugars 6g Protein 14g 27% Vitamin C 0mg 0% Calcium 357mg 27% Iron 2mg 8% Potassium 112mg 2% * 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.