Portobello Sandwiches


Quick, juicy burgers. My friends and I eat them at least once a week!

Prep Time:
8 mins
Cook Time:
9 mins
Additional Time:
3 mins
Total Time:
20 mins
4 burgers


  • 2 cloves garlic, minced

  • 6 tablespoons olive oil

  • ½ teaspoon dried thyme

  • 2 tablespoons balsamic vinegar

  • salt and pepper to taste

  • 4 large portobello mushroom caps

  • 4 hamburger buns

  • 1 tablespoon capers

  • ¼ cup mayonnaise

  • 1 tablespoon capers, drained

  • 1 large tomato, sliced

  • 4 leaves lettuce


  1. Turn on broiler, and adjust rack so it is as close to heat source as possible.

  2. In a medium-size mixing bowl, mix together garlic, olive oil, thyme, vinegar, salt and pepper.

  3. Put the mushroom caps, bottom side up, in a shallow baking pan. Brush the caps with 1/2 the dressing. Put the caps under the broiler, and cook for 5 minutes.

  4. Turn the caps, and brush with the remaining dressing. Broil 4 minutes. Toast the buns lightly .

  5. In a small bowl, mix capers and mayonnaise. Spread mayonnaise mixture on the buns, top with mushroom caps, tomato and lettuce.

Nutrition Facts (per serving)

445 Calories
33g Fat
31g Carbs
8g Protein
Nutrition Facts
Servings Per Recipe 4
Calories 445
% Daily Value *
Total Fat 33g 43%
Saturated Fat 5g 25%
Cholesterol 5mg 2%
Sodium 426mg 19%
Total Carbohydrate 31g 11%
Dietary Fiber 4g 13%
Total Sugars 7g
Protein 8g
Vitamin C 8mg 42%
Calcium 88mg 7%
Iron 3mg 16%
Potassium 727mg 15%

* 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.

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