Impossible Cauliflower Quiche

• 3 eggs
• 2 thinly cauliflorets (sliced)
• 1/2 bisquick
• 240 ml milk
• 120 gr colby cheese (shredded)
• 120 ml green pepper boiling water (chopped)
• 40 gr onion (chopped)
• 1 gr salt
• 1 gr pepper
• 1 package cauliflower (frozen)