01 -
Preheat oven to 220°C (425°F). Place red peppers on a baking tray, brush with olive oil, and roast for 25 minutes, turning occasionally, until blistered and charred.
02 -
Transfer peppers to a bowl, cover with a plate or plastic wrap, and let steam for 10 minutes. Peel skins, remove seeds, and slice into strips.
03 -
In a small bowl, whisk together balsamic vinegar, mustard, honey, olive oil, salt, and pepper to make the dressing.
04 -
In a large bowl, toss the greens and red onion with most of the dressing.
05 -
Arrange greens on a serving platter or plates. Top with roasted pepper strips and goat cheese. Sprinkle with nuts if using.
06 -
Drizzle with remaining dressing and serve immediately.