Pile sliced onions and these 4 ingredients over beef for a baked supper I keep craving week after week

This Oven-Baked Beef and Onion Foil Packet Dinner is the ultimate combination of simplicity and comfort. Tender slices of beef, sweet onions, and hearty potatoes cook together inside a sealed foil pouch, allowing all the savory flavors and natural juices to blend beautifully. The result is a satisfying homemade meal with minimal preparation and almost no cleanup.
Oven-Baked 5-Ingredient Beef & Onion Foil Packet Dinner
Ingredients:
| Ingredient | Quantity |
|---|---|
| Thinly sliced beef steak (such as sirloin or round) | 1 1/2 pounds |
| Large yellow onions, thinly sliced | 2 |
| Baby potatoes, halved (or small potatoes cut into 1-inch pieces) | 1 1/2 pounds |
| Olive oil | 3 tablespoons |
| Steak seasoning | 2 teaspoons |
| Salt and black pepper (optional) | To taste |
| Nonstick cooking spray (optional) | For foil |
Step-by-Step Directions:
Prepare the Oven and Foil:
Preheat the oven to 400°F. Place a large baking sheet in the oven setup area for support. Tear off four large sheets of heavy-duty aluminum foil, approximately 12×18 inches each. Lightly coat the center of each sheet with nonstick cooking spray if desired.
Prepare the Ingredients:
Slice the onions thinly, cut the baby potatoes in half, and slice the beef into thin strips if it has not already been prepared.
Season Everything:
Add the potatoes and onions to a large bowl. Toss them with olive oil, steak seasoning, and a small amount of salt and pepper until evenly coated.
Assemble the Foil Packets:
Divide the seasoned potato and onion mixture evenly between the four foil sheets. Place an equal amount of sliced beef on top of each portion, spreading the pieces out so they cook evenly.
Seal the Packets:
Fold the long sides of the foil together over the ingredients and seal tightly. Fold and roll the shorter edges upward to create secure packets, leaving a little room inside for steam to move around.
Bake Until Tender:
Arrange the foil packets on the baking sheet and bake for 30 to 35 minutes, or until the potatoes are soft when pierced with a fork and the beef is fully cooked.
Rest and Serve:
Carefully open one packet to check the ingredients, being cautious of the hot steam. Allow the packets to rest for 3 to 5 minutes before serving. Enjoy directly from the foil or transfer everything to bowls, making sure to drizzle the flavorful onion juices over the top.




