Ingredients
Method
- Preheat oven to 375°F. Melt butter in a skillet, sauté onion until soft.
- Stir in flour, cook 1 minute, then whisk in broth, milk, and soup until thickened.
- Add chicken, vegetables, salt, and pepper. Pour into a 9x13-inch baking dish.
- Mix biscuit mix with 2/3 cup milk until just combined; drop spoonfuls over the casserole.
- Bake 25-30 minutes until dumplings are golden and filling bubbles. Let rest 5 minutes before serving.