Photo of Grilled portobello burger with basil mayo by WW

Grilled portobello burger with basil mayo

Points® value
Total Time
35 min
20 min
15 min
Basil mayo is also a great condiment for sandwich wraps. Use just 2 teaspoons per serving to jazz up turkey, chicken or vegetable fillings.


Fresh basil

¼ cup(s), fresh, chopped

Reduced calorie mayonnaise

3 tbsp(s)

Apple cider vinegar

1 tsp(s)

Portabella mushrooms

4 large, (equivalent to 1 pound), caps

Olive oil cooking spray

4 spray(s), or enough to coat mushrooms

Table salt

tsp(s), or to taste

Black pepper

pinch(es), or to taste

Mixed grain hamburger roll

4 item(s)

Roasted red peppers (packed in water)

½ cup(s), (water-packed), or 4 pieces, drained

Red onion

4 slice(s), thick


4 piece(s)


  1. Heat grill. In a small bowl, combine basil, mayonnaise and vinegar; set aside.
  2. Lightly coat both sides of mushroom caps with cooking spray; season with salt and pepper.
  3. Grill mushrooms over medium-hot coals, until just soft to the touch, about 6 minutes per side.
  4. To serve, split rolls and toast on grill. Spread a heaping teaspoon of basil mixture on top and bottom halves of rolls. Layer each bottom half with one red pepper, mushroom, onion slice and lettuce leaf; top with remaining half of roll and serve.