preheat oven to 350°F

Spray a large skillet with nonfat cooking spray.

Cook onion and ham 2 to 3 minutes over medium heat. Microwave broccoli 3 minutes. Beat egg whites and yellow food coloring about 100 strokes. Put broccoli into pan with ham and onion. pour eggs over mixture in pan. Cook on low heat for 3 minutes.

Sprinkle with cheese.

Bake at 350°F for about 5 to 8 minutes or until eggs are fully cooked. cut frittata into thirds.