CHIPOTLE AIOLI (optional)
Prepare the tuna filling. To a bowl, add the tuna and mash it well. Add the mayo, lemon juice, red onion, black pepper, salt, jalapeños, mustard, and cilantro. Mix together well.
Make the chipotle sauce: To make the chipotle sauce, mix together mayonnaise, sour cream, lime juice, honey, black pepper, chili powder, adobo sauce, and chipotle pepper paste or sriracha in a small bowl. Once smooth, set it aside.
Heat a grill or panini press and spray with oil. Add two slices of bread per sandwich and toast until crispy and golden brown.
On one side of the bread, add a layer of pesto, then avocado, next tomato, and tuna. Add chipotle mayo on the other slice of bread and close the sandwich shut.
Cut in half and enjoy with your favorite hot sauce.