Mustard-Roasted Potatoes
Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 17 Jan 2026
Meets Patient’s editorial guidelines
- DownloadDownload
- Share
- Language
- Discussion
These mustard-roasted potatoes offer a vibrant twist on a classic side dish, combining the punchy heat of wholegrain Dijon mustard with aromatic oregano and bright lemon juice. By using a mix of red and white-skinned potatoes, you create an appealing contrast in texture and colour that elevates any meal. The mustard coating creates a beautifully crisp, savoury crust while the garlic and butter ensure the centres remain rich and fluffy.
This vegetarian dish is an excellent accompaniment to a traditional Sunday roast, grilled fish, or as part of a festive spread. Because they can be prepared in advance and quickly crisped up before serving, they are a practical choice for busy hosts looking to add more flavour to their potato repertoire without extra stress.
In this article:
Continue reading below
Ingredients for Mustard-Roasted Potatoes
Nonstick vegetable oil spray
120ml whole grain Dijon mustard
2 tablespoons extra-virgin olive oil
2 tablespoons (1/4 stick) butter, melted
2 tablespoons fresh lemon juice
3 garlic cloves, minced
1 tablespoon dried oregano
1 teaspoon finely grated lemon peel
1 teaspoon coarse kosher salt
1.4kg 1- to 1 1/2-inch-diameter mixed unpeeled red-skinned and white-skinned potatoes, cut into 3/4-inch-wide wedges
How to make Mustard-Roasted Potatoes
Position 1 rack in top third of oven and 1 rack in bottom third of oven and preheat to 218°C. Spray 2 large rimmed baking sheets with nonstick spray. Whisk mustard, olive oil, butter, lemon juice, garlic, oregano, lemon peel, and salt in large bowl to blend. Add potatoes; sprinkle generously with freshly ground black pepper and toss to coat. Divide potatoes between prepared baking sheets, leaving any excess mustard mixture behind in bowl. Spread potatoes in single layer. Roast potatoes 20 minutes. Reverse baking sheets and roast until potatoes are crusty outside and tender inside, turning occasionally, about 25 minutes longer. DO AHEAD: Can be made 2 hours ahead. Let stand on baking sheets at room temperature. Rewarm potatoes in 218°C oven 10 minutes.
Transfer potatoes to serving bowl.
Disclaimer
While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.
Article history
The information on this page is peer reviewed by qualified clinicians.
17 Jan 2026 | Originally published
Authored by:
UK recipe editors
Peer reviewed by
UK recipe editors

Ask, share, connect.
Browse discussions, ask questions, and share experiences across hundreds of health topics.

Feeling unwell?
Assess your symptoms online for free
Sign up to the Patient newsletter
Your weekly dose of clear, trustworthy health advice - written to help you feel informed, confident and in control.
By subscribing you accept our Privacy Policy. You can unsubscribe at any time. We never sell your data.