Cook cauliflower in microwave according to package directions. (I prefer mine crisp-tender, so I cook it about 2 minutes less than the package recommendations.)
If desired, cut cauliflower florets into smaller pieces.
On 2 plates, layer salad greens, cooked cauliflower, and roasted butternut squash.
Top with bacon pieces and sunflower seeds,
Shake dressing well, and drizzle over salads.
Serve immediately.
Discard any unused salad dressing. Refrigerate any unused vegetables.