Two tuna tostadas rest on a black rectangular plate atop a wooden surface

Two tuna tostadas rest on a black rectangular plate atop a wooden surface. Each tostada features a crispy golden tortilla shell, topped with sliced avocado, seared tuna, a light-colored sauce, and fried onion strings. The tostada on the left has larger onion pieces, while the one on the right has more finely chopped ones. The scene is dimly lit, emphasizing the texture of the food.