4-Ingredient Oven-Baked Beef Steak and Onion Foil Bake

If you’re looking for a hearty, budget-friendly dinner with almost no cleanup, this 4-Ingredient Oven-Baked Beef Steak and Onion Foil Bake is the perfect recipe. Wrapping steak and onions in foil locks in moisture, creating tender, juicy beef and sweet, caramelized onions with very little effort.

Whether you’re cooking for a busy weeknight or a relaxed weekend meal, this simple recipe delivers big flavor using just four everyday ingredients.

Why You’ll Love This Recipe

• Only 4 simple ingredients
• Minimal prep and cleanup
• Tender, juicy steak every time
• Naturally flavorful onions become soft and caramelized
• Perfect for family dinners or meal prep
• Easy to customize with your favorite seasonings

Ingredients

• 1–2 pounds beef steak (sirloin, round steak, chuck steak, or similar)
• 2 large onions, thinly sliced
• 3 tablespoons olive oil or melted butter
• 1–1½ teaspoons salt and freshly ground black pepper

Directions

Step 1: Preheat the Oven

Preheat your oven to 325°F (165°C).

Tear off two large sheets of heavy-duty aluminum foil, or use one large sheet folded over to completely seal the ingredients.

Step 2: Prepare the Onions

Place the sliced onions in a large bowl.

Drizzle with the olive oil or melted butter and season with salt and black pepper. Toss until evenly coated.

Step 3: Assemble the Foil Packet

Lay the steak in the center of the foil.

Spread the seasoned onions evenly over and around the steak.

Fold the foil tightly, sealing all edges well to trap the steam and juices inside.

Step 4: Bake

Place the foil packet on a baking sheet.

Bake for:

• 1½ to 2 hours for sirloin or round steak
• 2 to 2½ hours for tougher cuts like chuck steak

The steak is ready when it’s fork-tender and the onions have become soft and richly caramelized.

Step 5: Rest and Serve

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