Low-Fat Broccoli Cornbread

Ingredients

• 1 cup egg substitute
• 1/4 cup fat-free cottage cheese
• 1/2 cup nonfat sour cream
• 2 tablespoons margarine, melted
• 1/4 teaspoon salt
• 1 1/2 cups finely chopped onions
• 1 (10 ounce) package frozen chopped broccoli, thawed and drained
• 1 (8 1/2 ounce) package corn muffin mix (such as Jiffy brand)
• cooking spray