Toast the Bread:
Toast both slices of bread to your liking and set aside.
Cook the Egg:
In a small bowl, whisk the egg and yogurt until smooth. Pour into a greased pan over medium heat.
Shape the egg mixture to match your bread size as it cooks. Add spinach leaves on top of the egg while it’s still a bit wet, then flip to cook the other side.
Sprinkle with mozzarella cheese and a dash of rosemary. Let cook until the cheese is melted and the egg is fully cooked. Season with salt and pepper to taste.
Prepare the Avocado Spread:
Mash the avocado with a squeeze of lemon juice, salt, and pepper.
Spread the avocado mixture evenly over one slice of toasted bread.
Assemble the Sandwich:
Place the avocado-covered toast.
Layer with sundried tomatoes, cucumber slices, crumbled feta, drizzle of pesto and the cooked egg on top .
Top with the second slice of toasted bread and enjoy!