I'm not really sure where this came from in my life. I remember it as something my brother brought home from boy scout camp, but maybe it is something we ate before then. It was definitely something we ate afterwards, and not only when camping.
I think the idea is that you use whatever leftovers you have from the night before, mix in some eggs, cook it all together and... Junk Omelettes! Now I'm not really sure I've done it the right way. Camping as a family of 5 (or 4) generally left no leftovers. Add to that one begging family dog, and anything leftover went to her. So a junk omelette to me has always been chopped up veggies, meat if its in the fridge, and eggs.
First, the chopped up veggies. Some baby shallots with the green tops chopped too, and bell pepper:
Next, add the eggs. I seasoned mine with some celery salt. I only used 3 since it was only Doug and I eating. He usually wants 2, 1 egg is enough for me. Mix up the eggs in a bowl, add some milk if you've got it (not necessary, but it does make the eggs fluffier).
Since I only used about a teaspoon of fat for the veggies my eggs were way to healthy to be considered a proper Sunday breakfast. A problem easily fixed though: add some cheese! Sharp cheddar is my favorite. If you are trying to be healthy, a little sharp cheddar goes much further in flavor than mild or medium, so a smaller amount is more satisfying. Or skip the cheese altogether. Just expect it to be offered if you are invited for breakfast.
And there you have it. A junk omelette. Doug put his in a tortilla with leftover refried beans. I skipped the tortilla, but still had the beans on the side. You are limited to additions by what you have in your fridge and what you think sounds good. In addition to what I used for this meal, I've used bacon (in those rare instances when only one or two pieces remained), spam, onions, mushrooms, spinach, and tomatoes. I thought the spinach and tomato left too much moisture, but it all comes down to personal preference with this. As a general rule though, make sure meat is cooked all the way through before adding anything else to the pan. Veggies go in second (or first if you skipped meat) and are cooked only slightly unless you want soggy, overcooked bits of veg. I cook my eggs all the way, I think leaving any part of the egg runny is disgusting. But that is me and my fear of salmonella (and partly a texture thing).