Preheat oven to 375 degrees F

Spray an 8x8 casserole dish with cooking spray

Spread shredded frozen hash browns, evenly, in the bottom of the dish

Heat olive oil in a saute pan over medium heat and cook spinach until just wilted

Add chopped ham and cook for a minute or two more

Spread ham and spinach over hashbrowns

Sprinkle with cheese

Whisk together: eggs, egg whites, dijon, paprika, salt and pepper

Pour over casserole and bake for 40 minutes