For an extra layer of flavor, consider adding a dollop of sour cream or guacamole to each burrito. Feel free to customize the vegetables to your liking. Diced tomatoes, spinach, or mushrooms would also be delicious additions. To warm the tortillas, you can either microwave them for a few seconds, heat them in a dry skillet, or wrap them in foil and warm them in the oven. For spicier burritos, use a hotter variety of chorizo or add a pinch of cayenne pepper to the egg mixture. These burritos can be assembled ahead of time and reheated in the microwave or oven for a quick and easy breakfast.