Corn casserole is like mac and cheese but with corn. REALLY good, especially with some gravy. I'd put it as #1 and green beans as #2. But put them side by side and mix 'em a little...even better.
Our corn casserole is like a box of jiffy corn muffin mix, a can of corn, and a can of creamed corn, some sour cream, and bake. And its' phenomenal.