Prep the rhubarb: Rinse and trim the rhubarb.
Slice into 1/2-inch pieces. If using strawberries, hull and quarter them.
Cook the compote: Add rhubarb, strawberries (if using), honey or maple, and juice to a saucepan. Cook over medium heat, stirring, until the rhubarb breaks down and becomes jammy, about 8–12 minutes.
Add a pinch of cinnamon and a touch of vanilla if you like. Taste and sweeten a bit more if needed.
Cool it down: Let the compote cool to room temperature. It will thicken as it cools.
Refrigerate if making ahead.
Prep the yogurt: Stir plain yogurt with a little vanilla extract and a drizzle of honey if your child prefers it sweeter. Greek yogurt will be thicker and higher in protein.
Layer the parfait: In a glass or jar, add a spoonful of rhubarb compote, then yogurt, then a layer of fruit, and a sprinkle of granola. Repeat the layers once or twice.
Add extras: Sprinkle chia seeds or ground flax for extra fiber and healthy fats.
Keep granola on top to stay crisp.
Serve right away: Enjoy immediately for the best crunch. Or pack for later with granola in a separate container to prevent sogginess.