Blueberry Baked Oatmeal – Easy, Healthy & Make-Ahead Friendly

Ingredients

• 2 cups old-fashioned rolled oats ((not instant))
• 2/3 cup (packed) dark brown sugar
• 1 cup chopped pecans, (divided)
• 1 teaspoon baking powder
• 2 teaspoons ground cinnamon
• ¼ teaspoon ground nutmeg
• ½ teaspoon salt
• 2 large eggs
• 1⅔ cups milk
• 1 teaspoon vanilla extract
• 3 tablespoons unsalted butter, (melted, plus more for greasing the dish)
• 2½ cups blueberries, (divided)
• Lightly sweetened Greek yogurt, (for serving (optional))