Easy Spring Side: Roasted Potatoes and Asparagus with Lemon-Mustard Dressing Recipe (2024)

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Asparagus

Roasting asparagus and potatoes together makes a crispy, flavorful combination. A mustard lemon dressing brings it all together! This is a great vegetable side to serve with roast chicken or grilled steak.

Sally Vargas

Sally is the author of four cookbooks and is a regular correspondent for the Boston Globe Wednesday Food Section. She also is a food photographer.

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Updated June 04, 2022

6 Ratings

An Easy Side Dish for Spring

This dish is radically simple and easy, and really highlights the arrival of asparagus season.

Roast some potatoes in the oven, then add asparagus. Roast a little longer and voila!

While that’s happening you can make an easy lemon and mustard dressing to toss with the vegetables just before serving.

The recipe makes a bit more dressing than you might need for this dish, but it keeps for at least a week in the refrigerator, where it lies waiting for your next salad. Need I say it? That is so convenient!

Tarragon: The Secret Ingredient

Tarragon contributes a distinctive flavor—it's a bittersweet flavor that is similar to anise. Substitute parsley if tarragon is not your cup of tea.

Easy Spring Side: Roasted Potatoes and Asparagus with Lemon-Mustard Dressing Recipe (5)

What to Serve for the Main Course

Serve these roasted potatoes and asparagus alongside your favorite roasted chicken or a grilled steak. Try one of these recipes!

Ricotta-Stuffed Chicken
Peppercorn Steak
Roasted Garlic Chicken
Roast Chicken with Apricot Glaze
Cowboy Steak with Chimichurri Sauce

Turn Leftovers Into an Easy Lunch

In case you have any leftover potatoes and asparagus (and I doubt you will), you can add some chunks of canned tuna, tomatoes, hardboiled eggs, olives, green beans, or whatever you happen to have around to make a fantastic Nicoise-style salad.

I know I am going to be eating this side dish until the last spear of asparagus is pulled out of the ground.

Roasted Potatoes and Asparagus with Lemon-Mustard Dressing

Prep Time10 mins

Cook Time25 mins

Total Time35 mins

Servings4to 6 servings

Ingredients

For the potatoes and asparagus:

Oil (for the baking sheet)
1 pound small red-skinnedpotatoes, halved
2 tablespoons olive oil, divided
1/4 teaspoon salt, divided
1 pound asparagus, bottoms trimmed and cut into 1 1/2-inch lengths

For the dressing:

3 tablespoons lemon juice
1 teaspoon finely gratedlemon zest
1 teaspoon Dijon mustard
1/8 teaspoon kosher salt
1/3 cup extra virgin olive oil
Freshly ground black pepper
1 tablespoon chopped fresh tarragon

Method

Preheat the oven:
Preheat the oven to 450ºF.
Oil a rimmed baking sheet.
Begin roasting the potatoes:
Mound the potatoes in the center of the baking sheet. Sprinkle with 1 tablespoon of the olive oil and 1/8 teaspoon salt, or to taste. Toss to coat the potatoes and then spread on the baking sheet in one layer. Roast for 15 minutes. The potatoes should be partially cooked at this point.
Add the asparagus and continue roasting:
In a bowl, toss the asparagus with the remaining 1 tablespoon of oil and 1/8 teaspoon salt, or to taste.
Remove the baking sheet from the oven and push the potatoes to one side, keeping them in one layer. Spread the asparagus on the other side of the pan and return the pan to the oven.
Roast for 10 minutes longer, or until the asparagus and potatoes are tender. (Total cooking time is 25 minutes.) Transfer to a serving bowl.
Make the dressing:
In a small bowl, mix the lemon juice, lemon zest, mustard, salt, and a pinch of black pepper. Gradually whisk in the oil.
Toss the potatoes in the dressing:
Pour half the dressing over the warm potatoes and asparagus and toss to coat. Taste, and add more dressing, salt or pepper, if you like. Sprinkle with chopped tarragon and serve.

Asparagus
Red Potatoes

Nutrition Facts (per serving)
256	Calories
19g	Fat
20g	Carbs
4g	Protein

Show Full Nutrition Label

Nutrition Facts
Servings: 4to 6
Amount per serving
Calories	256
% Daily Value*
Total Fat 19g	24%
Saturated Fat 2g	12%
Cholesterol 0mg	0%
Sodium 173mg	8%
Total Carbohydrate 20g	7%
Dietary Fiber 3g	12%
Total Sugars 2g
Protein 4g
Vitamin C 15mg	76%
Calcium 34mg	3%
Iron 2mg	10%
Potassium 592mg	13%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Nutrition information is calculated using an ingredient database and should be considered an estimate. In cases where multiple ingredient alternatives are given, the first listed is calculated for nutrition. Garnishes and optional ingredients are not included.