Potsie's Creamed Chicken and Biscuits Casserole


Ingredients

  • 1 small onion
  • 1 1/2 teaspoons butter
  • 2 lbs chopped cooked chicken breasts or 2 lbs boneless skinless chicken thighs
  • 1 (10 3/4 ounce) can cream of chicken soup
  • 1/2 cup mayonnaise
  • 1 cup milk
  • 1/2 cup chopped pimiento or 1/2 cup sauteed red bell peppers or 1/2 cup jarred roasted red pepper
  • 1 1/2 cups shredded mild cheddar cheese
  • refrigerated biscuit