Take your hearty wheat bread and lay it flat on a clean cutting board. This base will hold all the delicious toppings you’re about to add.
In a small bowl, combine the mayo and Sriracha. Mix well until fully combined. This spicy mayo will add a creamy kick to your sandwich.
On one slice of bread, spread the basil pesto generously, ensuring it covers the entire slice for that herby goodness in every bite.
Slice the ripe avocado in half, remove the pit, and scoop out the flesh. Mash it slightly with a fork and spread it over the pesto layer. Season with a pinch of salt and pepper.
Add the baby spinach on top of the mashed avocado. This will provide a fresh crunch that complements the creamy elements.
Now it's time to add the sliced tomatoes, red onions, and roasted red bell peppers. Arrange them beautifully to maximize flavor and aesthetics.
Sprinkle the crumbled feta cheese over the vegetables. Its salty flavor will elevate the entire sandwich.
Spread the spicy mayo on the other slice of bread and place it on top of your layered masterpiece. Gently press down to help everything stick together.
Using a sharp knife, slice the sandwich in half. Serve immediately, or wrap it up for later.