Preheat your oven to 375°F (190°C) and lightly grease a small oven-safe baking dish with a touch of coconut oil.
Slice the fresh rhubarb into 1/2-inch pieces, making sure to discard any toxic leaves.
In a medium mixing bowl, whisk together the rolled oats, vanilla pea protein powder, ground cinnamon, and sea salt until well combined.
Add the unsweetened soy milk, vanilla extract, and maple syrup, stirring until the mixture is uniform and thick.
Gently fold the sliced rhubarb into the batter and transfer the mixture into the prepared baking dish, smoothing the top.
Drizzle the almond butter over the surface and sprinkle with hemp seeds to create a nutrient-dense crumble topping.
Bake for 20 to 25 minutes until the rhubarb is tender and the top is beautifully golden and set.
Allow the bake to cool for 5 minutes before enjoying to ensure the perfect texture and flavor balance.