Ronit Walker of Morningside writes, "I was inspired to put these ingredients together because I wanted my husband to have at least one fairly healthy meal a day --- and I have about 30 minutes from the time we get home to get it together. I am pretty sure he eats a Checkers burger and fries for lunch on a regular basis, and he skips breakfast. If I am feeling particularly virtuous, I will use whole-wheat tortillas and low-fat cheese (he can't tell the difference). The dish can be topped with chopped scallions, tomatoes, guacamole or sour cream."