Cauliflower and Spinach Gratin

Ingredients

• head Cauliflower (about 2 3/4 lbs.)

  cut into small florets
  1 large
• fresh spinach

  stemmed and rinsed well
  10 oz
• whole-Wheat bread

  crusts trimmed and discarded, bread torn into large pieces
  2 slices
• Tbs. olive oil
  1 unit
• low-fat soft or firm silken tofu (1 1/2 cups)
  12 oz
• Dijon mustard
  1/3 cup
• salt
  1/2 tsp
• freshly ground pepper
  1/2 tsp
• of cayenne pepper
  1 Pinch
• freshly grated Parmesan cheese (3 oz.)
  3/4 cup