If using protein powder, whisk it into the Greek yogurt along with honey and vanilla extract in a medium bowl until completely smooth with no lumps. Let the mixture rest at room temperature for 5 minutes to thicken and allow the protein powder to fully hydrate.

Prepare your berries by patting them dry with paper towels if using thawed frozen berries. If using fresh strawberries, slice them into bite-sized pieces for easier layering.

Toast your almonds or walnuts in a dry skillet over medium heat for 2-3 minutes, shaking the pan frequently, until fragrant and slightly golden.

Spoon 1/3 cup of yogurt mixture into the bottom of each 16-oz clear glass or jar. Add a layer of mixed berries (about 1/4 cup), then sprinkle with granola, nuts, and a pinch of chia and flax seeds.

Repeat the layering process until glasses are full, ending with a dollop of yogurt, a few berries on top, and a final sprinkle of nuts and seeds. Serve immediately for maximum crunch, or cover and refrigerate for up to 2 hours if you want them extra cold before serving.