Creamed Chicken & Biscuits

I found this on a recipe card while cleaning. Have not made it yet but looks very good so thought I'd post it. I'm thinking that the there might be a little too much sour cream or milk though. Also calls for frozen biscuits (but wouldn't recognize the word biscuits so had to use the phrase dough rolls) but thinking that some kind of Pillsbury roll might work.

• Ready In: 1 hr 3 mins
• Serves: 6

Ingredients

• 1⁄2 large onion, chopped
• 1 1⁄2 teaspoons butter
• 4  cups  cooked chicken, cut up
• 1 (10 3/4ounce) can  cream of chicken soup
• 1  cup sour cream
• 1⁄2 cup milk
• 1⁄4 cup pimiento, chopped
• 1  cup cheddar cheese, shredded & divided
• 6  frozen dough rolls, thawed

Directions

1. Preheat oven to 350°F; grease the bottom and sides of an 11x7-inch baking pan.
2. Heat butter in skillet over medium-high heat; add onion and saute until tender.
3. Combine onion, chicken, soup, sour cream, milk and pimento; mix well and pour into prepared baking dish.
4. Bake for 15 minutes.
5. Remove from oven and top with 3/4 cup of cheese. Arrange biscuits in a single layer over top of casserole. Sprinkle with remaining cheese.
6. Bake in oven until biscuits are golden brown and sauce is bubbly; approximately 20 minutes longer.