July 7, 2026 · 10 min

Seared Chicken with Creamy Mushroom Sauce, Garlic Mashed Potatoes and Arugula Salad

Side Dish10 min2369 cal / serving

This dish is all about layers of flavor and texture. Tender, pan-seared chicken cutlets are coated in a luscious mushroom sauce made with sour cream and butter, then paired with smooth, garlicky mashed potatoes. A bright, peppery arugula salad with lemon and Parmesan adds a fresh contrast that ties everything together.

Whether you’re cooking for a special occasion or just want to elevate a weeknight dinner, this recipe delivers a satisfying, hearty meal that feels indulgent but is surprisingly simple to prepare.


Recipe details

Side Dish10 min2369 cal / serving2 servings

Nutrition per serving

Calories2369 kcalProtein68.5 gFat208.7 gCarbs54 gSugar15.5 gFiber2.9 gSodium1656 mg

Dietary labels

Gluten-free: noLactose-free: noDairy-free: no

Allergen check

Gluten / wheat: containsMilk / dairy: containsEgg: not detectedFish: not detectedShellfish: not detectedPeanut: not detectedTree nuts: not detectedSoy: not detectedSesame: not detectedMustard: not detectedCelery: not detectedSulphites: not detectedLupin: not detectedMolluscs: not detected

Values are calculated per serving from ingredient amounts and the ingredient nutrition reference per 100g. Allergen and diet labels use available ingredient metadata and name matching; always check product labels for strict diets or allergies. Some ingredient amounts or nutrition values were incomplete, so this is marked as a partial estimate.


Ingredients

Sour Cream3 tablespoon Sour CreamView ingredient guide
Arugula2 ounce ArugulaView ingredient guide
Potatoes12 ounce PotatoesView ingredient guide
Lemon1 unit LemonView ingredient guide
Parmesan Cheese3 tablespoon Parmesan CheeseView ingredient guide
Cremini Mushrooms4 ounce Cremini MushroomsView ingredient guide
Flour1 tablespoon FlourView ingredient guide
Garlic Powder1 teaspoon Garlic PowderView ingredient guide
Black Pepperteaspoon (tsp) Black PepperView ingredient guide
Butter2 tablespoon (tbsp) ButterView ingredient guide
Olive Oil1 teaspoon (tsp) Olive OilView ingredient guide
Saltteaspoon (tsp) SaltView ingredient guide
Cooking Oil2 teaspoon (tsp) Cooking OilView ingredient guide

Instructions

  1. Wash and dry produce. If desired, peel potatoes. Dice potatoes into ½-inch pieces. Place in a medium pot with enough salted water to cover by 2 inches. Bring to a boil and cook until tender, 12-15 minutes. Reserve ½ cup potato cooking liquid; drain and return potatoes to pot. Keep covered off heat until ready to mash in Step 4.
  2. While potatoes cook, trim and thinly slice mushrooms (skip if your mushrooms are pre-sliced!). Quarter lemon.
  3. Pat chicken dry with paper towels. Place between two large pieces of plastic wrap; pound with a mallet or heavy-bottomed pan until about ½ inch thick. Season all over with salt and pepper. Sprinkle chicken all over with flour, pressing to adhere; shake off any excess. Heat a drizzle of oil in a large pan over medium-high heat. Add coated chicken; cook until browned and cooked through, 4-6 minutes per side. (For 4 servings, you may need to cook in batches.) Turn off heat; transfer chicken to a cutting board. Wipe out pan.
  4. Return pot with drained potatoes to low heat. Add half the sour cream, half the garlic powder and 1 TBSP butter (2 TBSP for 4 servings). (You’ll use the rest of the sour cream and garlic powder in the next step.) Mash until smooth and creamy, adding splashes of reserved potato cooking liquid as needed. Season with salt and pepper. Keep covered off heat until ready to serve.
  5. Heat a drizzle of oil in pan used for chicken over medium-high heat. Add mushrooms; season with remaining garlic powder and pepper. Cook, stirring, until softened, 2-4 minutes. Stir in stock concentrate and ¼ cup water (⅓ cup for 4 servings). Bring to a boil, then reduce to a low simmer. Cook, stirring, until slightly thickened, 2-3 minutes. Remove from heat. Stir in remaining sour cream and 1 TBSP butter (2 TBSP for 4) until melted and combined. Season with salt and pepper.
  6. In a large bowl, toss arugula with a drizzle of olive oil, a squeeze of lemon juice, salt and pepper until evenly coated. Taste and season with more salt and pepper if desired.
  7. Divide chicken, mashed potatoes and salad between plates. Spoon mushroom sauce over chicken and mashed potatoes. Sprinkle Parmesan over salad. Serve with remaining lemon wedges on the side.

Recipe Tips

For extra creamy mashed potatoes, warm the sour cream and butter before adding.

If you prefer a thicker sauce, let it simmer a minute longer to reduce further.

FAQ

Can I use chicken breasts instead of cutlets?

Yes, simply slice chicken breasts in half horizontally to create thinner cutlets, then pound to even thickness.

Can I make this recipe dairy-free?

You can substitute the butter with a plant-based alternative and use a dairy-free sour cream. The sauce may have a slightly different consistency.

How do I store leftovers?

Store chicken, mashed potatoes and salad separately in airtight containers in the refrigerator for up to 3 days. Reheat chicken and potatoes gently and enjoy the salad cold.

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