Hunters Chicken ~ In France, this dish goes by the name of ~ Chicken Chasseur. I made the sauce really quickly using Bisto Chicken Gravy for the base, 1/2 can of chopped fire roasted stewed tomatoes, a small can of sliced mushrooms, a little diced onion, a few herbs & a splash of sherry. (or you could use your favorite cooking alcohol)
If you don't have Bisto Gravy to make the sauce with, you could just combine a jar of brown gravy & a jar of chicken gravy ~ then add the other ingredients & simmer all together until warmed through. Add your already cooked chicken & let it all simmer together for a few minutes, then dish it up & eat. This is a great meal to make if you have leftover chicken (pieces or slices) hanging around the fridge. It's also nice enough to serve for dinner when you have company over, but no need to wait for a special occasion. You could easily use fresh ingredients, instead of canned, but the sauce will need to be simmered longer before you add the cooked chicken. This French inspired recipe is a versatile, quick & easy meal that is cheap & cheerful, too.
If you want a more traditional version, that is still pretty quick, try the recipe over at the site ~ Easy French Food.