Heat oil in a frying pan and sauté the peppers and mushrooms just until softening. Season with salt and black pepper.

For the dressing, place all the dressing ingredients in a tightly sealed jar and shake vigorously before using.

To serve, place the lettuce in a large salad bowl and top with sliced sugar snap peas and sautéed mushrooms and red peppers. Top with corn nuts and red onion. Pour the desired amount of dressing onto the salad immediately before serving.