French Onion Chicken with Roasted Carrots & Mashed Potatoes

A satisfying American chicken built around chicken breasts, carrots and potatoes — roughly 115 minutes start to finish, and rated involved to make. You'll find the full ingredient list (with a scaler to change the servings), 17 steps of method, substitutions, and ideas for what to serve alongside.
You'll mainly reach for oven and pan. At involved difficulty across 17 steps, it's worth setting aside proper time for.
What you'll need
Shopping list (5)
Pantry staples (you likely have these)
🔁 Unit converter
How to make it
- Preheat oven to 425 degrees. Wash and dry all produce. Trim, peel, and cut carrots on a diagonal into ¼-inch-thick pieces. Dice potatoes into ½-inch pieces. Halve, peel, and thinly slice onion.
- Toss carrots on a baking sheet with a drizzle of oil, salt, and pepper. Roast until browned and tender, 15-20 minutes.
- Meanwhile, place potatoes in a medium pot with enough salted water to cover by 2 inches. Bring to a boil and cook until tender, 12-15 minutes. Drain and return potatoes to pot; cover to keep warm.
- While potatoes cook, heat a drizzle of oil in a large pan over medium-high heat.
- Add onion and cook, stirring occasionally, until lightly browned and softened, 8-10 minutes.
- Sprinkle with 1 tsp sugar (2 tsp for 4 servings).
- Stir in stock concentrate and 2 TBSP water (¼ cup for 4); season with salt and pepper.
- Cook until jammy, 2-3 minutes more.
- Turn off heat; transfer to a small bowl.
- Wash out pan.
- Pat chicken dry with paper towels; season all over with salt and pepper.
- Heat a drizzle of oil in pan used for onion over medium-high heat.
- Add chicken and cook until browned and cooked through, 5-6 minutes per side.
- In the last 1-2 minutes of cooking, top with caramelized onion and cheese.
- Cover pan until cheese melts. (If your pan doesn’t have a lid, cover with a baking sheet!)
- Heat pot with drained potatoes over low heat; mash with sour cream, 2 TBSP butter (4 TBSP for 4 servings), salt, pepper, and a splash of water (or milk, for extra richness) until smooth.
- Divide chicken, roasted carrots, and mashed potatoes between plates.
You'll use: Oven · Pan · Large pot · Saucepan · Baking sheet
Ingredient substitutions
- Sour Cream
- plain Greek yogurt · crème fraîche
- Butter
- olive oil (¾ the amount) · coconut oil · margarine
What to serve with French Onion Chicken with Roasted Carrots & Mashed Potatoes
- Cream Cheese Tart Starter
- Rocky Road Fudge Dessert
- Hot Chocolate Fudge Dessert
- Vegan Chocolate Cake Vegan
Tips & common questions
How long does French Onion Chicken with Roasted Carrots & Mashed Potatoes take to make?
About 115 minutes from start to finish — an estimate based on the 17 steps and 12 ingredients. Times vary with your kitchen and how much prep you do ahead.
What can I use instead of sour cream?
Try plain Greek yogurt. See the substitutions section above for more swaps.
Can I scale this recipe up or down?
Yes — use the servings control above the ingredients and every quantity rescales automatically (fractions included). Cooking times stay roughly the same; very large batches may need a little longer.
How should I store leftovers?
Cool leftovers quickly, refrigerate in an airtight container, and eat within 3 days. Reheat until piping hot throughout.
Recipe data for French Onion Chicken with Roasted Carrots & Mashed Potatoes via TheMealDB (open database). Consomee adds the scaler, ingredient tools, timing and structure — how we source recipes.







