In a bowl combine:
cooked pasta- 2 to 4 cups
1 to 2 cups of sauce- either a white sauce, leftover gravy, leftover alfredo sauce, or canned cream soup.
Grated cheese- one or two cups
Steamed broccoli or other cooked vegetables (mushrooms, cauliflower, peas)
Pour into greased casserole, top with about half a cup of grated cheese and bread crumbs (or potato chips, mashed into crumbs), and bake at 350 until bubbly.