01 - In a medium bowl, whisk together the almond milk, chia seeds, maple syrup, and vanilla extract until thoroughly combined. Let the mixture stand at room temperature for 10 minutes, then whisk vigorously a second time to break up any clumps. Cover tightly and refrigerate for at least 2 hours, or overnight, until the pudding reaches a thick, creamy consistency.
02 - Combine the chopped strawberries, maple syrup, and lemon juice in a bowl. Using a fork, lightly mash the berries to release their natural juices while leaving some texture. Set aside at room temperature or refrigerate until ready to assemble.
03 - Preheat the oven to 350°F (180°C). In a small bowl, combine the rolled oats, almond flour, melted coconut oil, maple syrup, cinnamon, and salt, stirring until the mixture resembles a coarse, evenly moistened crumb. Spread the mixture in a thin layer on a parchment-lined baking sheet. Bake for 10 to 15 minutes, stirring halfway through, until golden brown and lightly crisp. Allow to cool completely on the sheet.
04 - Spoon a layer of chia pudding into the bottom of each serving glass or jar. Add a layer of the macerated strawberry mixture, followed by a sprinkle of the oat crumble. Repeat to create 2 to 3 distinct layers, finishing with a generous portion of crumble on top.
05 - Serve immediately for the best crunch, or cover and refrigerate for up to 4 hours before serving. If making ahead, store the crumble separately and add just before serving to maintain its crisp texture.