Sausage Potato Breakfast Casserole - Jo Cooks

Ingredients

• ¾ pound Italian sausage ((spicy or mild))
• 1 onion (chopped)
• 4 ounces white mushrooms (chopped)
• 1 green bell pepper (chopped)
• 1 red bell pepper (chopped)
• 6 eggs
• ⅓ cup milk ((I used 2%))
• ¼ teaspoon salt
• ¼ teaspoon black pepper
• ¼ teaspoon red pepper flakes
• 20 ounces frozen hash brown potatoes (cubed (1 bag))
• 2 cups mozzarella cheese (shredded)
• 6 green onions (chopped)