Quiche With Saltine Crust

• 36 saltines (crushed)
• 180 gr egg substitute
• 180 ml lite sour cream
• 150 gr swiss cheese (shredded)
• 80 gr imitation crab
• 60 gr onion (diced)
• 55 gr calorie tub margarine (reduced)
• 1 package mushrooms liquid reserved (drained)