01 - In a large bowl, mix drained tuna, panko breadcrumbs, eggs, red onion, cilantro, jalapeño, mayonnaise, Dijon mustard, garlic, Sriracha, salt, and black pepper until thoroughly combined.
02 - Shape the mixture into 8 small patties, pressing gently to maintain their form.
03 - Heat vegetable oil in a large skillet over medium-high heat. Fry the tuna cakes for 3–4 minutes per side until golden brown and heated through, cooking in batches to avoid overcrowding.
04 - Whisk mayonnaise, Sriracha, lime juice, and salt in a small bowl until smooth and well combined.
05 - Present the warm tuna cakes with the Sriracha mayo on the side for dipping.