Hash Brown Casserole

Ingredients (8)

• 5-6 Cups shredded potatoes, 4-5 medium sized russet potatoes
• 1/3 Cup mayonnaise
• 1/3 Cup sour cream, or greek yogurt
• 4 scallions, whites and greens chopped
• 8 ounces sharp cheddar cheese, shredded
• 1/2 Teaspoon cayenne pepper
• Butter or nonstick spray, for dish
• Pinch of salt and pepper