8 to 12...depending on how hungry they are!
I learned to make this back in the '60s...tried it again the other day and wowed the people I made it for...easy to no cleanup, makes it's own gravy and you don't even have to check on it...
boneless chuck roast
cream of mushroom soup
dry onion soup mix
1Tear off a large sheet of heavy duty aluminum foil. Place roast in center, rub steak sauce on both sides of roast. Cover with 1 can cream of mushroom soup (last time I used roasted garlic mushroom soup), top with dry onion soup mix. Close foil to make a packet, sealing all edges tightly. Place in roasting pan (9X13 pan works great). Place in 300 degree oven for 3 hours. Open foil carefully and transfer to serving dish. Gravy will be ready along with the roast...no further preparation needed. :)