One 12-ounce bag frozen onions
One 8-ounce bag frozen baby carrots
One 8-ounce package sliced mushrooms
1/2 pound small new potatoes, halved
4 pounds beef chuck roast, rinsed and patted dry
Salt and pepper
2 tablespoons canola oil
One 10.75-ounce can condensed cream of celery soup
1 packet onion soup mix
1 cup low-sodium beef broth
1/4 cup steak sauce