Spinach and Onion Quiche Without a Crust

I have fallen in love with Liquid Egg Whites. They are a weight watcher's best friend, and just what the doctor ordered for my DH who is not supposed to have egg yolks and had been told to cut back on carbs. The liquid eggs are low in point value and a filling food(for me) and high in protein and iron (for him). Today's breakfast was a Spinach and Onion Quiche.

Ingredients:
1 10 oz. pkg of baby spinach
1 lg onion, sliced
2 cups liquid egg white
Salt & pepper
2 oz. shredded cheese.

Microwave the spinach and put into a strainer. Press out as much of the liquid as possible and put the spinach into a bowl.
Saute the onion until soft and combine with the spinach. Season with salt and pepper.
Add the 2 cups of liquid egg white, and pour the mixture into a quiche pan that has been sprayed with non-stick spray. Sprinkle the shredded cheese onto the mixture.