hearty egg casserole

Ingredients

• - cooking spray
• - 1 pkg. frozen southern style hash brown potatoes, about 6 cups or 28 oz
• - 1 pkg. shredded sharp cheddar cheese, 8 oz, or 2 cups
• - 10 eggs, well beaten
• - 1 cup reduced fat sour cream
• - 1 cup skim or low fat milk
• - 2 t. honey dijon mustard, optional
• - 1 t. salt
• - 1/4 t. ground pepper
• - sliced red onion, optional
• - parsley sprig, optional
• - mixed greens, optional