You will be pleasantly surprised.

1 2.5 - 3 pound beef chuck roast
1 Can cream of mushroom soup
1 Package dry onion soup mix (such as Lipton)
1 Can coca-cola (not diet)
1.5 cups baby carrots

Lay baby carrots in bottom of roaster. Place roast over top. Pour cream of mushroom soup and dry onion mix on roast. Pour can of coke over top. Bake, covered, at 350 degrees for 3 hours. Serve with mashed potatoes.