Healthy Scalloped Potatoes

Ingredients

• 2 lb either russet or Yukon gold potatoes, sliced evenly into 1/4 inch thick rounds
• 1 tsp olive oil
• 1/2 cup white onion, diced (approximately 1/4 medium sized onion)
• 4 garlic cloves, crushed
• 2 tsp panko bread crumbs
• 1 cup non-fat plain Greek yogurt
• 1/2 cup water
• salt and pepper, to taste
• 2 tsp fresh thyme
• 1/2 cup grated light marble cheddar cheese
• 1/4 cup grated parmesan cheese