Step 1

In a bowl, combine grapefruit and orange sections. Sprinkle with sugar. Add red pepper and red onion and toss.

Step 2

In a blender, combine the honey, vinegar, poppy seeds, grated onion, lemon juice, salt, mustard and lemon peel; cover and process until blended. Pour over fruit mixture and toss to coat.

Step 3

In a serving bowl, toss greens & mushrooms. Arrange fruit mixture on top of greens. Serve immediately.