In a medium bowl, whisk together the eggs, season with salt and pepper, and set aside.
Using a large skillet, heat the oil on medium-high heat.
If you are using onions, garlic, and peppers, add to the skillet and cook until soft and onions are translucent.
Add in any other ingredients that you were able to find in your refrigerator and top with the eggs. Cook the filling by scrambling around in the pan.
Add any cheese prior to removing from the pan.
If preparing these ahead of time, try to undercook the egg mixture slightly.
Pour the burrito filling into a medium bowl, and fill the tortillas with ½ cup of the mixture in each. Tightly roll the burritos, serve immediately with a side of salsa or store in an airtight container, and reheat in the microwave for 45 seconds to 1 minute prior to serving.
Store in the refrigerator for 3 to 4 days.