Easy Scalloped Potatoes | Savory

Ingredients

• Cooking spray
• 2 tbsp unsalted butter
• 2 tbsp all-purpose flour
• 2 cups whole milk
• 6 slices American cheese, roughly chopped
• 1 1/2 cups finely shredded Cheddar cheese, divided
• 2 tsp fresh thyme leaves
• 1/2 tsp garlic powder
• 4 (15 oz) cans sliced white potatoes, drained and rinsed