1 cup low-fat sour cream or plain yogurt
1/4 cup (1/2 stick) butter or trans-fat free margarine, melted
1 can whole kernel corn, undrained
1 can cream style corn
1 box Jiffy corn muffin mix
Beat egg; add sour cream (yogurt) and blend. Add margarine, corn, and muffin mix. Bake in casserole dish for 60-70 minutes at 350 degrees, until nicely browned on top.