Prep the berries. Rinse and pat dry. Slice strawberries; leave smaller berries whole. Place them in a bowl with a pinch of salt and a small amount of sugar-free sweetener.
Gently toss and let sit 5–10 minutes to release their juices.
Thicken with chia (optional, but great). Sprinkle chia seeds over the berries and stir. They will absorb some juice and add a jammy texture without cooking.
Sweeten the yogurt. In a separate bowl, stir the Greek yogurt with vanilla extract and your chosen sweetener. Start with a small amount, taste, and adjust.
Add lemon zest if you like a citrusy note.
Toast the crunch. If using nuts or coconut, lightly toast in a dry skillet over medium heat until fragrant, 2–4 minutes. Let cool. This step boosts flavor and crunch.
Layer the parfaits. In clear glasses or jars, add a spoonful of yogurt, then a layer of berries, and a sprinkle of the crunchy element.
Repeat until you reach the top, finishing with berries and a final dusting of crunch.
Garnish and serve. Add mint leaves for a fresh pop. Serve right away for maximum crunch, or chill for 20–30 minutes to meld the flavors.
Adjust to taste. If the berries are very tart, drizzle a touch more sweetener over the top before serving.