Stir the cottage cheese with the lemon juice and zest in a medium bowl until slightly smooth but still creamy; this brightens the flavor and gives a loose base for the toppings.
Combine the halved cherry tomatoes and diced cucumber in a small bowl; toss with half the olive oil and a pinch of salt to macerate briefly while you prepare the other elements (about 2 minutes).
Heat a small dry skillet over medium heat and toast the sunflower seeds, stirring, until they are fragrant and just starting to brown, about 2–3 minutes. Transfer to a small dish to cool.
If using eggs, warm 1 teaspoon of olive oil in the skillet over medium. Crack eggs into the pan and cook to your preference—sunny-side up with a slightly runny yolk works best here (about 2–3 minutes). Season the eggs with a pinch of salt and pepper and remove from the pan.
Assemble: divide the lemoned cottage cheese between two bowls. Spoon the tomato-cucumber mix to one side, arrange avocado slices on another, and scatter scallions and dill over the top.
Drizzle the remaining olive oil over the bowls, sprinkle smoked paprika and everything bagel seasoning, then finish with toasted seeds for crunch. Top each bowl with an egg if using.
Allow the bowls to sit 1 minute so flavors settle, then break the yolk into the cottage cheese when ready to eat and stir slightly for a creamy texture contrast.