Combine ingredients for the spicy mayo.
For the beef, chop the tenderloin as fine as possible. Season with salt and pepper. Add 3 to 4 tablespoons of spicy mayo to taste.
Divide this mixture into quarters.
Mold it into a tortilla and garnish with tomato, a few slices of jalapeno, red onion, mango, pear, caviar, mascaporne, and cilantro.
*Warning: Consumption of raw or undercooked meat may substantially increase the risk of foodborne illness.
Recipe courtesy of Masaharu Morimoto