Need a really simple and inexpensive dinner for the family? This Skinny Beef Casserole is a favorite! After seeing a similar recipe in Taste of Home, I gave the recipe a makeover to make it healthy and amp up the taste. The combination of the corn and sweet onions add to the spicy flavors of the red pepper and chili powder. Feel free to add in other vegetables, and you could easily substitute chicken for beef as well.