Instead of making your own fried shallots or onions, the classic French’s Original french fried onions are delicious and easily found in most grocery stores. Or upgrade to imported crispy onions for a truly gourmet experience.
If you steam the green beans the night before, it really speeds things along. Add five minutes to baking time if you mix them in cold.
Find it online: http://shiftycrafty.com/ultimate-green-bean-casserole/