Homemade Scalloped Potatoes – Choose Homemade

Ingredients

• Non-stick cooking spray
• 2 Tbsp cornstarch
• 2 tsp dried thyme
• 1 tsp garlic powder
• 1/4 tsp ground nutmeg
• 1/2 tsp black pepper
• 1/2 cup plain non-fat Greek yogurt
• 1 cup 1% low-fat milk
• 1/2 cup shredded cheddar cheese, divided
• 1/4 cup shredded Parmesan cheese, divided
• 2 lbs yellow potatoes, thinly sliced