Bake in the oven at 350 degrees F for about 30 minutes, or until bubbly, and serve. Adkins says his family enjoys the rich and creamy chicken casserole with a side of rice, green beans, and dinner ...

Melt 2 Tbsp. butter in the same pan. Once the butter is melted, add the onion and 1/2 tsp. salt and cook, stirring occasionally, until the onion begins to soften, which should take about 5 minutes.

The old-fashioned secret ingredient never goes out of style. Dotdash Meredith Food Studios Open up any vintage cookbook and you'll find one secret ingredient that pops up over and over again, from ...