Toucan Taco, an old, hole-in-the-wall family-owned and operated restaurant in Laurel, Maryland, serves some of the best and most unique Mexican food I have ever tasted. Until I was diagnosed with congestive heart failure, I had gone to Toucan Taco at least once a week for a delicious Sunken Meat Burrito. But now that I am on a low sodium diet, Toucan Taco is "off limits" to me. So I embarked on a mission to clone these sunken beauties and, after numerous “close-but-no-cigar” attempts, I did it! I have isted “regular” ingredients, but it’s incredibly easy to significantly reduce the sodium content by using reduced-sodium, low-sodium, or sodium-free beef stock, tomato paste, canned tomatoes, and tortillas.