1	lb. smoked fish (such as mullet, sable or tuna), boned, shredded
1	med. white onion, peeled and finely chopped
1	med. carrot, peeled and shredded
2	Roma tomatoes, seeded and finely chopped
2	fresh jalapeños, seeded and finely chopped
2	T. finely chopped cilantro
	Juice of 2 to 3 limes, or to taste
	Salt and pepper, to taste

Combine ingredients; let sit 1 hour. Serve with tostadas.