Gruyère & Pea Cheesy Potato Casserole

Ingredients

• Nonstick cooking spray
• 1 ½ cups low-fat cottage cheese, drained
• ½ cup less-sodium chicken broth
• 1 bag (20 ounces) refrigerated shredded hash brown potatoes
• 1 container (6 ounces) plain nonfat Greek yogurt
• 2 cups shredded Gruyère cheese
• ½ cup frozen peas
• ½ cup grated Parmesan cheese
• ½ cup thinly sliced green onions
• ¼ cup unsalted butter, melted
• ½ teaspoon salt
• ½ teaspoon black pepper
• 3 cups cornflakes, lightly crushed