Creating the Pesto Eggs & Mortadella Sandwich is simple and straightforward. Follow these easy steps to achieve a delicious result:

1. Prepare the Ingredients: Gather all your ingredients and set them out for easy access.
2. Toast the Bread: In a toaster or on a skillet, lightly toast the bread slices until golden brown.
3. Cook the Eggs: Heat olive oil in a non-stick skillet over medium heat. Crack the eggs into the skillet and season with salt and pepper. Cook to your desired doneness (sunny-side up, over-easy, or scrambled).
4. Heat the Mortadella: In the same skillet, briefly add the slices of mortadella to warm them up, about 1-2 minutes.
5. Assemble the Sandwich: Spread the basil pesto on one side of each toasted bread slice. Layer the cooked eggs on one slice, followed by the warm mortadella.
6. Optional Additions: If desired, sprinkle grated Parmesan, add arugula, or layer sliced tomatoes for extra flavor and texture.
7. Complete the Sandwich: Top with the second slice of bread, pesto side down, and gently press down to secure the ingredients.
8. Slice and Serve: Cut the sandwich in half diagonally for easier handling and presentation.

These steps will guide you in crafting a delightful Pesto Eggs & Mortadella Sandwich that is sure to impress.