Portobello Steak Burger with Caramelized Onions Recipe

Posted by
Rate It!
Portobello Steak Burger with Caramelized Onions
Add your photo!



  1. Combine first 6 ingredients in a large zip-top plastic bag. Add mushroom caps; seal and marinate in refrigerator 24 hours.
  2. Prepare grill or broiler.
  3. Remove mushroom caps from bag, discarding marinade. Place mushroom caps on grill rack or broiler pan coated with cooking spray; cook 5 minutes or until tender.
  4. Heat the oil in a medium nonstick skillet over medium-high heat. Add onion; cover and cook 10 minutes or until golden brown, stirring frequently.
  5. Combine mayonnaise and roasted garlic in a small bowl. Spread 1/2 tablespoon mayonnaise mixture evenly over the top halves of buns; top each bottom half of bun with 1 lettuce leaf, 1 tomato slice, 1 mushroom cap, 1 tablespoon caramelized onion, and top half of bun.
Kitchen-Friendly View

Nutrition Facts

Per ServingPer 100 g
Amount Per 1 Serving
Calories 564.8 Kcal (2365 kJ)
Calories from fat 80.01 Kcal
% Daily Value*
Total Fat 8.89g 14%
Cholesterol 2.24mg 1%
Sodium 198.93mg 8%
Potassium 827.21mg 18%
Total Carbs 26.68g 9%
Sugars 12.05g 48%
Dietary Fiber 5.61g 22%
Protein 6.45g 13%
Vitamin C 23.5mg 39%
Iron 84.2mg 468%
Calcium 145.1mg 15%
Amount Per 100 g
Calories 93.74 Kcal (392 kJ)
Calories from fat 13.28 Kcal
% Daily Value*
Total Fat 1.48g 14%
Cholesterol 0.37mg 1%
Sodium 33.01mg 8%
Potassium 137.29mg 18%
Total Carbs 4.43g 9%
Sugars 2g 48%
Dietary Fiber 0.93g 22%
Protein 1.07g 13%
Vitamin C 3.9mg 39%
Iron 14mg 468%
Calcium 24.1mg 15%

* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Find out how many calories should you eat.


  • salty
  • savory
  • bitter
  • sweet
Search recipes
by ingredients
Construct & Analyze
Your Recipe

Recipe Tags

Weightwatchers Points

  • 11.2
  • 5

Good Points

  • low fat,
  • saturated fat free,
  • very low sodium,
  • cholesterol free

Share Recipe

Get Your Recipe of Health!
Follow RecipeOfHealth on Facebook!
Scroll to top