dads potato and cheese gratin

Ingredients

• 1 tablespoon canola oil
• 3 - leeks, trimmed, halved lenghtwise, thinly sliced, white parts only
• 1-1/2 cup fat-free milk
• 1 tablespoon flour
• 1/2 teaspoon salt
• 1/4 teaspoon pepper
• 1/8 teaspoon nutmeg
• 1 teaspoon minced garlic
• 5 medium yukon gold potatoes, cut into 1/8"-slices
• 1 cup goat cheese
• 1/4 cup panko bread crumbs
• 1/4 cup grated parmesan cheese
• - parsley for garnish