1. In a medium-sized mixing bowl, combine the plain Greek yogurt and cottage cheese. Gently mix them together until somewhat incorporated.

2. Add the scoop of vanilla protein powder, honey or maple syrup, and vanilla extract to the bowl.

3. Using an immersion blender, a regular blender, or a food processor, blend the mixture until it is completely smooth and creamy. Scrape down the sides of the bowl as needed to ensure everything is fully combined. The cottage cheese curds should disappear, leaving a uniform, thick consistency.

4. Gently fold in the mixed berries. If using frozen berries, you might want to let them thaw slightly first, or they can be folded in frozen for a colder dessert that will firm up quickly.

5. Divide the mixture into individual serving bowls or glasses. Sprinkle the chopped nuts over the top of each serving. If using, add a pinch of cinnamon or a few chocolate chips.

6. For best results, cover the bowls and refrigerate for at least 15-30 minutes. This allows the flavors to meld and the dessert to firm up slightly, enhancing its texture and taste. Serve cold.