This 5-ingredient oven baked salmon and potatoes is the kind of practical dinner that earns a regular spot in the weeknight rotation: minimal prep, one pan, and a reliable payoff. Starting with frozen solid salmon portions means you can skip thawing, while the potatoes roast underneath and around the fish, soaking up the savory juices as everything cooks together. It is a smart, fuss-free approach that feels especially at home in busy Midwestern kitchens where convenience matters, but flavor still has to show up at the table.
Serve this salmon and potatoes with a simple green vegetable such as steamed broccoli, green beans, or a crisp salad to round out the plate. A wedge of lemon at the table brightens the rich salmon nicely, and if you want to stretch the meal a bit further, warm crusty bread or a scoop of rice works well for catching the flavorful pan juices.
5-Ingredient Oven Baked Salmon and Potatoes
Servings: 4
Ingredients
4 frozen solid raw salmon portions, about 5 to 6 ounces each
1 1/2 pounds potatoes, diced into 3/4-inch pieces
3 tablespoons olive oil
1 packet dry onion soup mix, about 1 ounce
1 lemon, cut into wedges for serving
Directions
1. Preheat the oven to 425°F. Lightly oil a 9-by-13-inch oven-safe metal baking dish or coat it with a thin film of the olive oil.
2. Add the diced potatoes to the baking dish. Drizzle with 2 tablespoons of the olive oil and sprinkle with about half of the onion soup mix. Toss well so the potatoes are evenly coated, then spread them into an even layer.
3. Place the frozen salmon portions directly on top of the potatoes. Drizzle the remaining 1 tablespoon olive oil over the salmon and sprinkle the rest of the onion soup mix over the fish and potatoes.
4. Bake uncovered for 35 to 45 minutes, until the potatoes are tender and browned at the edges and the salmon flakes easily in the center. If your salmon portions are especially thick, give them a few extra minutes as needed.
5. Let the dish rest for 5 minutes, then serve with lemon wedges for squeezing over the top.
Variations & Tips
Add a vegetable: If you want a fuller one-pan meal, scatter quick-cooking vegetables such as green beans or asparagus into the dish during the last 12 to 15 minutes of baking so they stay vibrant and do not overcook.
Cut potatoes evenly: Keep the potato pieces close to the same size so they finish at the same time. Smaller dice cook more reliably in the same window as frozen salmon than large chunks do.
Use the right pan: A metal baking dish or sheet pan promotes better browning on the potatoes than glass or ceramic. If the potatoes need more color at the end, remove the salmon once cooked and return the potatoes to the oven for a few extra minutes.
Change the flavor profile: Instead of onion soup mix, you can use a simple blend of garlic powder, paprika, salt, and black pepper if you prefer a less savory, more straightforward seasoning. A little dill added after baking is also very good with salmon.
Check doneness carefully: Because frozen salmon portions can vary in thickness, start checking the fish near the lower end of the baking time. The salmon should flake easily and look opaque throughout, while the potatoes should be fork-tender.