Hash Brown Quiche

4 cups frozen loose packed shredded hash brown potatoes, thawed
Pam – butter flavored
1 cup diced cooked ham
1 cup shredded cheese – I use Mexican mix with 4 cheese pregrated
¼ cup onions, chopped
½ cup mushrooms, sliced
2 eggs
½ cup milk
½ tsp salt
½ tsp pepper
 
Directions:
Preheat oven to 425. Press hash browns between paper towels to remove excess moisture. [...]