Impossible Cauliflower Quiche

Ingredients

• salt
• boiling water
• 2 cups thinly sliced cauliflower florets
• 1 (9 ounce) package frozen cauliflower, thawed and drained
• 1/2 cup chopped onion
• 1/2 cup chopped green pepper
• 1 cup shredded colby cheese (, about 4 ounces)
• 1 cup milk
• 1/2 cup Bisquick
• 3 eggs
• 1/2 teaspoon salt
• 1/8 teaspoon pepper