Cheddar Parmesan Scalloped Red Potatoes - Simple Seasonal

Ingredients

• 1 1/2 lb red potatoes sliced thin (1/8 inch)*
• 3/4 C finely chopped sweet yellow onion
• 3 Tbsp butter
• 3 Tbsp flour
• 1 tsp dried parsley
• 1/2 tsp dried garlic granules
• 1/2 tsp dried thyme
• 1/2 tsp salt
• 1/8 tsp paprika
• 1/8 tsp pepper
• 2 C 2% milk
• 1 1/4 C shredded extra sharp cheddar cheese
• 2/3 C shredded fresh parmesan cheese