A dash of vinegary hot sauce is a great addition here ... the meat will get tough. Crema and avocado add rich creaminess to push the burger over the top.
Scrape the sauce into a bowl; season with salt. ? In a medium bowl, toss the avocados with the lime juice and season with salt. Mash the avocado onto the toasts and transfer to a platter.
Top each with 1 cheese slice. Divide ketchup mixture, burgers, tomatoes, avocado mixture and alfalfa sprouts among buns. SELF does not provide medical advice, diagnosis, or treatment. Any ...