Sweet potatoes bake in béchamel sauce with white beans & mint

Ingredients

• Cooking spray
• 1 ½ cups of Anchor powder milk (5 full tablespoons of Anchor powder mixed in 1 ½ glasses of water)
• 1 can white beans, drained
• 2 tablespoons unsalted butter
• 2 cloves garlic, minced
• 1 bay leaf
• 2 teaspoon fresh mint leaves
• 1/4 teaspoon ground nutmeg
• 1 teaspoon sea salt
• 1/4 teaspoon freshly ground black pepper
• 4 medium sweet potatoes, peeled and sliced into 1 cm thick rounds
• 1/2 cup shredded cheddar cheese
• ¼ cup of mint leaves