Preheat oven to 200°C. Line a baking tray with baking paper. Place mushrooms on prepared tray, spray with olive oil, drizzle with the balsamic vinegar and season with sea salt and freshly ground black pepper. Roast in preheated oven for 15 minutes, or until golden and tender.
Meanwhile, toast bagels until golden, slice avocado into thin wedges. To serve, place a toasted bagel half on each plate, top each with some avocado and mushrooms. Garnish with parsley. Serve with an extra drizzle of balsamic if desired.
Mushrooms can also be pan fried in a large frying pan, sprayed with oil over a high heat. Cook, stirring occasionally for 3-4 minutes or until golden.
Serving Size 2