balsamic portobello mushroom burger with bocconcini cheese, fried egg, lettuce and tomato

Why, hello, handsome.

I know there are plenty of you out there who simply refuse to believe in vegetarian burgers. But just bear with me for a moment. As a huge mushroom enthusiast, I want to share my joy with you in regards to my unprecedented mushroom burger success this weekend.

Portobello mushrooms. Also known as portabella mushrooms or field mushrooms. And very delicious.

The burger I am about to introduce is a juicy, sexy ol' hunk of mushroomy goodness, dewy with a lush balsamic vinegar dressing that winks with the piquancy of crushed garlic, shallot and herbs. The bocconcini exudes a creamy self-assurance, while the fried egg brings a little attitude. And ever so reliably, lettuce, tomato and crusty bread brings the whole package together. Yes. Yes, I think I'm in love.

Portobello mushroom marinating in a tangy dressing made with balsamic vinegar, olive oil, garlic and shallot.

balsamic portobello mushroom and bocconcini burger with fried egg, lettuce and tomato (makes 2)

2 large field/portobello mushrooms, stems trimmed
2 tablespoons balsamic vinegar
1 tablespoon olive oil
1 clove garlic, chopped
1 shallot, chopped
8 baby bocconcini or 2 regular bocconcini, thickly sliced (may be substituted with other melting cheese)
a few lettuce leaves (I used green oak lettuce; spinach or rocket/arugula will also work well)
a few tomato slices
sea salt, black pepper and dried or fresh herbs (e.g. parsley, thyme, etc.) to taste
2 eggs
4 slices of toasted crusty bread

- Combine garlic, shallot, balsamic vinegar, olive oil and a liberal pinch each of sea salt, black pepper and herbs in a mortar. Grind, pound and mix well with the pestle to create a marinade and brush or drizzle this mixture generously over the portobello mushrooms. Let it sit for 15 minutes.
- In a bowl, toss lettuce leaves and tomato together in any leftover marinade and set aside.
- Preheat the oven to 180°C/360°F fan-forced (200°C/390°F conventional).
- Place the marinated portobello mushrooms gills side up in the oven and bake for 10-15 minutes.
- While you wait for the mushrooms to cook, fry the eggs to your liking, keeping each one separate, and season with salt and pepper to taste.
- Scatter bocconcini slices on top of the mushrooms and bake for another 3 minutes or until the cheese is just melted. Retrieve mushrooms from oven.
- To assemble each burger, layer lettuce leaves, one mushroom (cheese side up), a slice or two of tomato, one fried egg and more lettuce on a piece of bread, and top off with another piece of bread.
- Enjoy with wild abandon, casting aside all unreasonable thoughts of maintaining any sense of decorum.

Bocconcini mushroom burger with fried egg, lettuce and tomato.