These roasted sweet potatoes are tossed in Dijon mustard and a bit of maple syrup, then roasted with shallots and bacon. A lovely side dish for brunch, a side for dinner or just to enjoy any time!

roasted sweet potatoes in cast iron skillet

These roasted sweet potatoes are a perfect side dish for a brunch or dinner, as it comes together quickly and easily and pairs perfectly with Easter ham or maybe Eggs Benedict. Whatever is on your menu, this sweet potato dish will brighten up the meal.

It’s also one of those dishes that is more than the sum of its parts. There’s just something about the caramelization of the sweet potatoes and onions that comes from roasting. Combine that with the kick of the mustard, the subtle thyme spice and the smokiness and crunch of the bacon and it’s a special dish.

Ingredients and Substitutions

Sweet Potatoes – Mini sweet potatoes have just started to show up at my grocery store (look for them in Canada where President’s Choice products are sold). I’m hoping they are widely available because they are fabulous! They have a thin skin, so they can be cooked (and eaten) skin-on, which is great for dishes like this to help the sweet potatoes hold their shape. If you can’t find mini sweet potatoes, simply cut up a regular sized sweet potato in to bite-sized chunks. In either case, be sure not to stir the potatoes once they have been added to the skillet. Just let them be, or you may find they will fall apart.

Dijon Mustard – regular Dijon mustard is used here, but you could also use grainy mustard.

Maple Syrup – real maple syrup is recommended, but in a pinch maple pancake syrup will bring the same flavour notes.

Shallots – regular onion is a fine substitute for the shallot.

Bacon – the bacon in this dish is optional (though it adds a nice smokiness and crunch). If you prefer to skip it to make this dish vegetarian, just omit it. Be sure to grease your skillet with a bit of olive oil instead, to prevent the potatoes sticking.

Recipe Tips

These sweet potatoes are best freshly roasted. In a pinch, you could roast ahead, then reheat loosely covered with foil in a 350F oven until re-warmed.

dijon roasted sweet potatoes in cast iron skillet

dijon roasted sweet potatoes in cast iron skillet

Get the Recipe: Roasted Sweet Potatoes with Mustard

Sweet potatoes, tossed with dijon mustard and maple syrup and herbs, then roasted with shallots and bacon until they are creamy and caramelized. A perfect side dish any time of year!
5 stars from 2 ratings
Prep Time: 5 minutes
Cook Time: 45 minutes
Total Time: 50 minutes
Yield: 6 servings


  • 2 slices bacon, diced (optional)
  • 1 1/2 lbs mini sweet potatoes, un-peeled, quartered (or regular sweet potato, scrubbed and unpeeled recommended, and cubed)
  • 1 1/2 Tablespoons extra virgin olive oil
  • 2 medium shallots, halved then sliced (about 1/4 cup) or onion
  • Salt and pepper
  • 1/4 cup Dijon mustard
  • 1 Tablespoon maple syrup
  • 1 teaspoon fresh thyme leaves, less if using dried leaves


  • Preheat oven to 425° F. with rack in centre of oven.
  • If not using bacon, simply grease your pan with some olive oil instead, so the sweet potatoes don't stick. If your skillet isn't oven-proof, you can brown the bacon on the stove-top and then transfer to any shallow oven-proof pan that has been greased with olive oil or a bit of bacon fat.
  • In an oven-proof skillet (preferably cast iron), cook bacon until starting to brown. Remove bacon from skillet and set aside. Discard fat from pan, but don't wipe pan.
  • Meanwhile, place cut potatoes in a large bowl and toss with olive oil. Add shallots and toss again Sprinkle with a bit of salt and pepper and toss to combine. In a small bowl, whisk together the mustard, maple syrup and thyme leaves. Pour over potatoes and toss well to combine and evenly coat the potatoes.
  • Pour potatoes in to skillet used to brown the bacon. Spread out evenly. Roast in pre-heated oven for 40 minutes. *Do not stir potatoes while cooking, as they may fall apart! Remove from oven and sprinkle reserved bacon over-top. Again, do not stir. Return to oven for an additional 5 minutes or until potatoes are soft (*Be sure to taste test for doneness, as these can look done but are still a little hard. You want them to roast to creamy softness :). Garnish with fresh thyme.


Be sure to read the notes above this Recipe Card, for more tips, options, substitutions and variations for this recipe!
Cuisine: American
Course: Side Dish
Serving: 1serving, Calories: 175kcal, Carbohydrates: 25g, Protein: 3g, Fat: 7g, Saturated Fat: 1g, Cholesterol: 4mg, Sodium: 229mg, Potassium: 410mg, Fiber: 3g, Sugar: 6g, Vitamin A: 16125IU, Vitamin C: 4.2mg, Calcium: 46mg, Iron: 1mg
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