Marinade
  • 2 tablespoons olive oil
  • 1 tablespoon balsamic vinegar
  • 1 teaspoon yellow mustard
  • Salt & pepper

Ingredients

  • 2 large portobello mushrooms, sliced into 4 long slices each
Fixings:
  • ½ cup chopped red onion
  • ½ cup sliced tomatoes
  • Squeeze of lime
  • Salt & pepper
  • Yellow mustard
  • 4-5 hot dog buns
  • Ketchup on the side
Instructions
  1. In a separate bowl, mix together the sliced tomatoes and chopped red onion. Add a squeeze of lime, salt and pepper. Stir and set aside.
  2. Preheat your grill or grill pan. In another small bowl, mix the marinade ingredients together (olive oil, balsamic, mustard, salt & pepper), and brush onto the portobello slices until they’re coated.
  3. Grill mushroom strips on each side until grill marks form and mushrooms are tender and juicy (about 3-4 minutes per side). Place 2 mushroom slices into each hot dog bun. Top liberally with onion & tomatoes, some serrano slices, and a swirl of mustard.