This 5-ingredient beef and onion foil packet dinner is one of those back-pocket recipes I lean on during extra busy weeks. It has that cozy, Midwest meat-and-potatoes vibe, but with almost no cleanup and very little hands-on time. Foil packet meals have a long camping and cookout tradition—toss everything in, wrap it up, and let the heat do the work. This oven version brings that same idea indoors, so you can have a hearty, comforting dinner even on a Tuesday night after a long workday. If you love simple, savory flavors and minimal dishes in the sink, this one’s for you.
These beef and onion foil packets pair really well with something fresh and simple on the side. I like to serve them with a green salad tossed in a light vinaigrette or some steamed green beans to balance the richness of the beef. Crusty bread or dinner rolls are great for soaking up the flavorful juices that collect in the packet. If you’re feeding a hungry crew, you can also add a side of roasted broccoli or a quick coleslaw for extra veggies without much extra work. And if you’re planning ahead for the week, the leftovers are tasty sliced up and tucked into a warm tortilla with a little cheese and salsa.
Oven-Baked 5-Ingredient Beef & Onion Foil Packet Dinner

Ingredients
1 1/2 pounds thinly sliced beef steak (such as sirloin or round)
2 large yellow onions, thinly sliced
1 1/2 pounds baby potatoes, halved (or small potatoes cut into 1-inch chunks)
3 tablespoons olive oil
2 teaspoons steak seasoning (or your favorite all-purpose seasoning blend)
Salt and black pepper, to taste (optional, depending on your seasoning blend)
Nonstick cooking spray (for foil, optional)
2 large yellow onions, thinly sliced
1 1/2 pounds baby potatoes, halved (or small potatoes cut into 1-inch chunks)
3 tablespoons olive oil
2 teaspoons steak seasoning (or your favorite all-purpose seasoning blend)
Salt and black pepper, to taste (optional, depending on your seasoning blend)
Nonstick cooking spray (for foil, optional)
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