Leftovers into the pan

I always have too many leftovers and I never know what to do with them.  Today I decided to toss all of them into a pot.  Generally, that’s my typical cooking style (through stuff into a pot and see what happens) unless I’m making a specific dish.  Today I had bits of uncooked pasta, half a large eggplant, and a few other raw ingredients.  Feel free to try this with anything you like.  Here is what I had.

Ingredients:

1/2 of a large eggplant (peeled and diced)
3/4 of a large red onion (diced)
1 14.5 oz. can of tomatoes (whatever you have on hand)
a packet of mushrooms (mine were already sliced)
cheese (whatever you like, to taste)
salt, pepper, parsley, garlic
a handful of spaghetti
liquid (you can use some wine, or stock or water. I used about a cup of chicken stock)

Steps:
1. In a large skillet saute onions, garlic and eggplant together. When the eggplant shrinks a little and the onions are really soft, add the mushrooms.
2. Add stock and cook for a few minutes before adding the can of tomatoes.
3. Season.
4. Add the cooked pasta (cook it in a different pot), parsley, and cheese.