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Mediterranean Portobello Beef Burgers
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5 from 3 votes

Mediterranean Portobello Beef Burgers

These Mediterranean Portobello Beef Burgers are a healthy BBQ recipe topped with garlic herb cheese, roasted red peppers and basil mayo.
Prep Time15 mins
Cook Time15 mins
Total Time30 mins
Course: Main Course
Cuisine: American
Servings: 4 burgers
Calories: 580kcal


  • 1 tbsp olive oil
  • 1/2 block garlic and herb cheese, grated or white cheddar cheese
  • 1 red bell pepper, sliced
  • 1 portobello mushroom, sliced
  • 1 medium sized red onion, sliced
  • 1 package Arugula
  • 4 burger buns

Burger patties

  • 1 lb extra-lean ground beef
  • 1 portobello mushroom, finely minced
  • 1/3 cup breadcrumbs
  • 1 small yellow onion, grated
  • 1 egg
  • 2 tsp dijon mustard
  • 1 tsp garlic powder
  • 1 tsp salt
  • 1/2 tsp pepper

Basil mayo

  • 1/2 cup light mayo
  • 1/2 cup fresh basil leaves
  • 1/2 tsp lemon juice


  • Preheat BBQ to med-high heat. Make basil mayo by blending mayo, lemon juice and basil together in a Magic Bullet or using an immersion blender.
  • Mix ground beef, minced portobello, breadcrumbs, onion, egg, dijon, garlic powder and salt and pepper together in a large bowl, then form into 1/2 inch thick burger patties.
  • Place burger patties gently on grill, or cook in a skillet for 4-5 minutes per side.
  • Meanwhile, saute red pepper and red onion in a skillet with some olive oil over med-high heat, seasoning with salt and pepper.
  • In the last two minutes or so of cooking time, add cheese to burgers and lightly toast buns on the BBQ or in a skillet. Remove and serve burgers topped with veggies, arugula and basil mayo. Enjoy!


Swap out the ground beef for ground turkey or pork.
Scoop out all the mushroom gills to avoid a bitter aftertaste.
Make sure not to overhandle your burger patties or they can fall apart while cooking.
Assemble your burgers as you eat them, then store any leftovers separately in the fridge for up to 5 days. Reheat on the stovetop or the grill then assemble your fresh burgers.
Freeze the patties with a piece of wax or parchment paper in between for up to 3 months, then grill from frozen.


Calories: 580kcal | Carbohydrates: 40g | Protein: 40g | Fat: 28g | Saturated Fat: 11g | Polyunsaturated Fat: 6g | Monounsaturated Fat: 10g | Trans Fat: 1g | Cholesterol: 145mg | Sodium: 1373mg | Potassium: 824mg | Fiber: 4g | Sugar: 9g | Vitamin A: 1462IU | Vitamin C: 43mg | Calcium: 336mg | Iron: 6mg