What you need:
1/2 yellow onion, diced
4-5 fresh mushrooms, sliced
1 bell pepper, diced (I used a combination of red, yellow & green, and used a little jarred roasted red pepper too)
Leftover roast beef, chopped
1 avocado, chopped
salt & pepper to taste
Heat up a couple lugs (okay, so I've been using Jamie Oliver cook books too much) of olive oil in your pan, and cook onions until soft.
Add mushrooms, and cook until mushrooms reduce in size.
Toss in your peppers and leftover roast beef. These you want to cook just long enough for your beef to warm up, but not so long that your peppers get mushy (if you're really worried about that, toss in the beef first, and then the peppers a while later)
Add your avocado into the mix.
Now because I wanted "piece of egg" and not just "egg coated meat and veggies" I moved most of the stuff in the pan to one side, and poured in my eggs on the other. Add salt and pepper. Scramble your eggs as they cook.
When the eggs are cooked, mix together with everything else!
Alright, so maybe not the prettiest thing to look at, but you know what would fix that? Cheese. I actually had intended to throw some on here, and forgot.