If you’re craving a side dish that’s simple, comforting, and packed with flavor, these oven-roasted potatoes and onions are a must-try. Crispy on the outside, tender on the inside, and infused with garlic, rosemary, and savory seasonings, this dish transforms humble ingredients into a standout addition to any meal. Whether paired with roasted meats, grilled vegetables, or served as a hearty vegetarian option, these potatoes are sure to become a household favorite. The combination of canola and olive oil ensures even roasting and a rich, golden finish, while fresh rosemary and garlic elevate the flavor profile without overpowering the natural sweetness of the onions and earthiness of the potatoes. Using an onion soup mix adds a subtle depth, creating a comforting, almost restaurant-quality dish right in your own kitchen.
Ingredients
- 2 pounds potatoes, sliced into 1/2-inch-thick pieces
- 1 onion, halved and each half cut into quarters
- ½ cup canola oil
- ½ cup olive oil
- 4 cloves garlic, chopped
- 1 envelope onion soup mix
- 1 tablespoon chopped fresh rosemary (or more to taste)
- 1 tablespoon freshly ground black pepper
Instructions
- Preheat Oven: Preheat your oven to 450°F (230°C).
- Prepare the Vegetables: In a large roasting pan, combine the sliced potatoes and quartered onion halves.
- Add Flavors: Pour in the canola and olive oils, then add the chopped garlic, onion soup mix, fresh rosemary, and black pepper. Toss everything together until all pieces are evenly coated with the oil and seasonings.
- Roast Covered: Cover the pan with aluminum foil and roast for 25 minutes. This initial covered roasting helps the potatoes cook through without drying out.
- Finish Roasting: Remove the foil and continue roasting for an additional 15–30 minutes, until the potatoes and onions are golden brown and crispy around the edges. Stir once or twice during this time to ensure even browning.
- Serve: Remove from oven and serve hot as a perfect side dish for any main course.
These oven-roasted potatoes and onions are versatile, easy to make, and deliver that irresistible combination of crispy edges and tender interiors. They’re a crowd-pleaser for weeknight dinners, holiday gatherings, or any time you want a comforting, homemade side dish.