Prep your egg: If you haven't already, hard-boil your egg. (Pro tip: keep a batch of hard-boiled eggs in your fridge for the week for easy meal prep!) Peel and set aside.
Mash the base: In a small bowl, add your hard-boiled egg and half avocado. Using a fork, mash them together until they're combined but still slightly chunky. You want some texture, not complete mush!
Add the other elements: Add the tomato, Greek yogurt and a generous squeeze of fresh lime juice (about 1-2 teaspoons). Mix and continue to mash everything together until creamy and well combined. The lime juice not only adds flavor but also helps keep the avocado from browning.
Mix in the fresh stuff: Add the finely diced red onion, chopped fresh parsley, and chopped fresh chives. Stir everything together until all the ingredients are evenly distributed.
Season: Taste your egg avocado salad and add salt as needed. Start with a pinch and adjust to your preference.
Assemble: Lay out your Lundberg rice cakes on a plate. Spread the desired amount of cottage cheese. I usually do 1 tablespoon. Divide the egg avocado salad evenly among the 3 rice cakes, spreading it generously on top of each one.
Serve immediately: Enjoy right away while the rice cakes are crispy and the salad is fresh! These are best eaten immediately, but if you need to, you can prep the salad ahead and assemble just before eating.