
Prepare the Steak
Place the beef onto heavy-duty foil and cover it evenly with dry onion soup mix.

Round steak slowly bakes in a sealed foil packet with onion soup mix until tender. The onions and savory juices are every bit as welcome on mashed potatoes as the beef itself.
This Sweep Steak is a simple, comforting roast that transforms an economical cut of beef into something remarkably tender and flavorful! Wrapped tightly in foil and slowly baked with onion soup mix, it creates its own rich savory juices, making it an easy family supper that's perfect served over mashed potatoes, noodles, or rice.

Double-wrap the foil if it looks thin. The packet should puff up a little while it's cooking. I always put the baking pan underneath because juices have a way of finding the smallest opening. The onions in the bottom are worth scooping out onto the plate.

Place the beef onto heavy-duty foil and cover it evenly with dry onion soup mix.

Add onions, mushrooms, butter, broth, black pepper, or Worcestershire sauce if desired.

Fold and crimp every seam tightly so the beef cooks in its own trapped steam and juices.

Bake slowly at 300°F for about 3 hours, continuing longer if the beef is still firm.

Let the packet rest briefly, open it carefully, and spoon the savory pan juices over the beef before serving.

Round steak slowly bakes in a sealed foil packet with onion soup mix until tender. The onions and savory juices are every bit as welcome on mashed potatoes as the beef itself.
Scaling note: Ingredient quantities scale in this recipe. Review equipment capacity, batch arrangement, and cooking time when changing the yield.
6 servings — Serving size: About 1 portion steak with juices
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