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

1 small onion

Preheat oven to 350.

Grease the bottom and sides of an 11x7 inch baking dish or 10 inch quiche dish.

Chop the onion.

Heat butter in a small nonstick skillet and saute until tender.

Combine cooked onion, soup, chicken, milk, pimiento, and mayo in a bowl and then turn into the prepared baking dish.

Bake for 15 minutes and remove from oven.

Sprinkle 1 cup of the cheese over the baked mixture.

Arrange biscuits decoratively in a single layer and sprinkle remaining 1/2 cup cheese over them.

Return casserole to oven and bake until biscuits are golden brown and sauce is bubbly, usually about 20 minutes longer