1 jar or can (5-7 ounces) of tuna in water, drained
3 tablespoons mayonnaise (adjust to your preferred creaminess)
2 teaspoons Sriracha sauce (adjust to your desired level of spiciness)
1-2 teaspoons fresh lemon juice (adjust to taste)
Salt and pepper to taste
1/4 teaspoon paprika, optional
1/4 red onion, thinly sliced
6 slices of fresh jalapeno
Handful of fresh spinach leaves
2–4 slices of your favorite good-quality bread (sourdough, whole-grain, ciabatta, etc.)
In a mixing bowl, combine the drained tuna, mayonnaise, Sriracha sauce, a pinch of paprika, fresh lemon juice, and season with salt and pepper to your liking. Adjust the level of spiciness with more Sriracha if needed.
Lay out the toasted slices of good-quality bread on a clean surface.
Place a generous amount of the spicy tuna mixture on one slice of bread.
Layer the jalapeno and red onion slices on top of the tuna.
Add a handful of fresh spinach leaves over the red onion.
Top with another slice of bread.
Optionally, you can grill the sandwich in a panini press or on a stovetop skillet with a little butter to create a warm and toasty Spicy Tuna Panini. Press it gently and flip it so both sides become golden brown.
Once your sandwich is assembled and grilled (if desired), slice it in half.
Find it online: https://thebuttertable.com/spicy-tuna-sandwich/