Requesón is a spreadable cheese that reminds me of an unsalted ricotta.
I recently had it in Hidalgo. The cheese was prepared by frying it with spring onions, garlic and epazote. Then a big, healthy blob was added to a bowl of beans.
I bought some recently and did the same, subbing red onion for scallions. Then I added it to the middle of an omelet.
Of course, beans would have been a great addition.
I found mine in the butcher section of my local Mexican market. I'm told it's used throughout Latin America.