Preheat the oven to 350F. Grease a 12 count muffin tin and set it aside. In a large bowl, whisk together the oats, baking powder and salt. In a separate bowl, whisk together the milk, yogurt, eggs, vanilla, sugar, lemon zest and lemon juice. Pour the wet ingredients into the dry and mix until everything is incorporated. Then fold in the frozen raspberries and the almonds.