Sunday's Random Breakfast

We had egg whites leftover from making Saturday's creme brulee, so I came up with this egg-white-only version of huevos rancheros:

Cook some chopped bacon in a pan over medium heat until it's browned.
Add some chopped onion and cook a couple minutes until it starts to soften.
Add some cooked black beans and corn kernels (I cut these off an ear leftover from Saturday) and cook for a minute or two.
Beat the egg whites a bit to break them down, then add them to the pan and mix into the other stuff. Cover and cook until it starts to set up.
Add grated cheese, mix well, and cover again.
Cook, stirring occasionally, until the egg whites are set.
Serve with corn tortillas, salsa, and sour cream.