In a small saucepan, bring water and milk to the boil, add salt and oatmeal, lower heat, cover and cook for about 12-15 minutes, stirring often, until all liquid is absorbed and oatmeal is nice and creamy.
Meanwhile, in a seperate saucepan, cook blueberries, water, lemon juice, chia seeds and agave nectar over low heat, stirring occasionally, until blueberries start to "explode" and sauce thickens. You might want to swoosh the blueberries a little bit with your spoon to help break them up. Set aside when ready.
In a small non-stick pan, over medium heat, toast the sliced almonds and old fashion oats until golden and fragrant. Set aside.
In small mixing bowl, mix protein powder with plain yogurt until smooth and creamy. Set aside.
When all your components are ready, transfer to serving bowls, starting with oatmeal, then blueberry sauce, followed by custard and finally the crumble.