01 - In a mixing bowl, whisk together the almond milk, chia seeds, maple syrup, and vanilla extract until well combined. Let the mixture rest for 5 minutes, then whisk again to break up any clumps. Cover and refrigerate for at least 2 hours or overnight until thick and gelatinous.
02 - Combine the sliced strawberries, lemon juice, and maple syrup in a small saucepan over medium heat. Cook for 6 to 8 minutes, stirring occasionally, until the strawberries break down and the juices reduce into a thick, syrupy consistency. Remove from heat and let cool completely.
03 - Preheat the oven to 350°F (180°C). In a bowl, toss together the rolled oats, chopped nuts, melted coconut oil, maple syrup, cinnamon, and salt until evenly coated. Spread the mixture in a thin layer on a parchment-lined baking sheet. Bake for 10 to 12 minutes, stirring halfway through, until golden brown and crisp. Let cool completely on the sheet.
04 - Spoon a layer of chilled chia pudding into the bottom of each glass or jar. Add a generous spoonful of strawberry compote, followed by a sprinkling of oat crumble. Repeat the layers once more for a taller parfait, if desired. Finish with fresh strawberry slices on top.
05 - Serve immediately for the best texture contrast. Alternatively, cover and refrigerate the assembled parfaits (without the crumble) for up to 2 days; add the oat crumble just before serving to maintain its crunch.