French Onion Pot Roast

Featured in: Weekend Slow Recipes

This dish features slow-braised beef chunks infused with sweet caramelized onions and aromatic herbs. A rich red wine and beef broth base enhances depth, while a crunchy, toasted baguette layer topped with melted Gruyère adds satisfying texture. The bake is perfectly melded with fresh carrots and celery, offering a balanced, savory meal ideal for cooler nights. Optional brandy and gluten-free adaptations allow for flavor and dietary flexibility.

Updated on Mon, 24 Nov 2025 13:33:00 GMT
Tender French Onion Pot Roast Casserole with bubbling melted Gruyère cheese and golden-brown baguette. Save to Pinterest
Tender French Onion Pot Roast Casserole with bubbling melted Gruyère cheese and golden-brown baguette. | orchardbowl.com

A cozy, deeply savory casserole combining tender pot roast, caramelized onions, and cheesy goodness—an ultimate comfort food inspired by classic French onion soup.

This pot roast casserole quickly became a family favorite, perfect for weekend dinners and easy to prepare ahead.

Ingredients

  • Beef & Aromatics: 2.5 lbs (1.1 kg) chuck roast cut into large chunks, 2 tablespoons olive oil, Salt and freshly ground black pepper to taste, 2 large yellow onions thinly sliced, 4 garlic cloves minced, 2 teaspoons fresh thyme leaves (or 1 tsp dried), 2 tablespoons tomato paste
  • Liquids: 1 cup (240 ml) dry red wine, 2 cups (480 ml) beef broth (gluten-free if needed), 1 tablespoon Worcestershire sauce
  • Vegetables: 2 large carrots peeled and sliced, 2 celery stalks sliced
  • Topping: 1 baguette sliced and lightly toasted (use gluten-free bread for GF), 2 cups (200 g) shredded Gruyère cheese

Instructions

Preheat Oven:
Preheat oven to 325°F (165°C).
Sear Beef:
Heat olive oil in a large Dutch oven or heavy-bottomed skillet over medium-high heat. Season the beef with salt and pepper. Sear the beef in batches until browned on all sides. Transfer to a plate.
Caramelize Onions:
Reduce heat to medium. Add sliced onions and a pinch of salt. Cook stirring often until onions are deeply caramelized about 20–25 minutes. Add garlic thyme and tomato paste cook for 2 minutes until fragrant.
Deglaze:
Pour in red wine scraping up any browned bits. Simmer for 2–3 minutes.
Combine Ingredients:
Return beef to the pot. Add beef broth Worcestershire sauce carrots and celery. Stir to combine and bring to a simmer.
Braise:
Cover and transfer to the oven. Braise for 2 hours or until the beef is fork-tender.
Increase Heat:
Increase oven temperature to 375°F (190°C).
Add Topping:
Remove the pot from the oven. Arrange toasted baguette slices over the top. Sprinkle generously with Gruyère cheese.
Bake:
Return to the oven uncovered and bake for 15–20 minutes until the cheese is melted and golden.
Rest:
Let rest for 10 minutes before serving.
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| orchardbowl.com

Sharing this dish brings everyone to the table, turning simple meals into cherished family moments.

Required Tools

Dutch oven or heavy casserole dish Chefs knife Cutting board Wooden spoon Oven-safe serving dish

Allergen Information

Contains Dairy (cheese) Gluten (baguette use gluten-free bread if needed) Soy and fish in Worcestershire sauce check label for allergens

Nutritional Information

Calories 545 Total Fat 27 g Carbohydrates 31 g Protein 41 g per serving

A comforting photo of a bubbling French Onion Pot Roast Casserole, perfect for a cozy weeknight dinner. Save to Pinterest
A comforting photo of a bubbling French Onion Pot Roast Casserole, perfect for a cozy weeknight dinner. | orchardbowl.com

This casserole is perfect for those cool nights when you want a dish that feels like a warm hug.

Recipe Questions & Answers

What cut of beef is best for this dish?

Chuck roast works well due to its marbling and ability to become tender during slow cooking.

How do I achieve deeply caramelized onions?

Cook sliced onions slowly over medium heat with occasional stirring for about 20–25 minutes until golden and sweet.

Can I use another cheese if Gruyère is unavailable?

Swiss or Emmental cheese are good alternatives that also melt well and complement the flavors.

Is it possible to make this gluten-free?

Yes, by substituting the baguette with gluten-free bread and ensuring all broths and sauces are gluten-free.

What role does the red wine play in the dish?

Red wine adds depth and complexity, enhancing the savory notes and tenderizing the beef during braising.

French Onion Pot Roast

Tender beef with caramelized onions and melted Gruyère for cozy, comforting flavors.

Prep Time
25 minutes
Time to Cook
150 minutes
Overall Time
175 minutes
Created by Sophie Alden

Recipe Type Weekend Slow Recipes

Skill Level Medium

Cuisine Origin American-French Fusion

Makes 6 Number of Servings

Dietary Details None specified

What You'll Need

Beef & Aromatics

01 2.5 pounds chuck roast, cut into large chunks
02 2 tablespoons olive oil
03 Salt and freshly ground black pepper, to taste
04 2 large yellow onions, thinly sliced
05 4 garlic cloves, minced
06 2 teaspoons fresh thyme leaves or 1 teaspoon dried thyme
07 2 tablespoons tomato paste

Liquids

01 1 cup dry red wine
02 2 cups beef broth (use gluten-free if required)
03 1 tablespoon Worcestershire sauce

Vegetables

01 2 large carrots, peeled and sliced
02 2 celery stalks, sliced

Topping

01 1 baguette, sliced and lightly toasted (substitute gluten-free bread if needed)
02 2 cups shredded Gruyère cheese

How To Make It

Step 01

Preheat oven: Set oven temperature to 325°F.

Step 02

Sear beef: Heat olive oil in a large Dutch oven or heavy skillet over medium-high heat. Season beef with salt and pepper and brown in batches on all sides. Remove and set aside.

Step 03

Caramelize onions: Reduce heat to medium. Add onions and a pinch of salt to the pot. Stir frequently and cook until deeply caramelized, about 20 to 25 minutes. Add garlic, thyme, and tomato paste and cook for 2 minutes until fragrant.

Step 04

Deglaze with wine: Pour in red wine, scraping browned bits from the bottom. Simmer for 2 to 3 minutes to reduce slightly.

Step 05

Combine ingredients and simmer: Return beef to pot. Add beef broth, Worcestershire sauce, carrots, and celery. Stir to combine and bring mixture to a simmer.

Step 06

Braise in oven: Cover and transfer to the oven. Braise at 325°F for 2 hours until beef is fork-tender.

Step 07

Prepare for broiling: Increase oven temperature to 375°F.

Step 08

Add topping: Remove pot from oven. Arrange toasted baguette slices on top. Generously sprinkle with shredded Gruyère cheese.

Step 09

Melt cheese: Return uncovered pot to oven and bake for 15 to 20 minutes until cheese is melted and golden brown.

Step 10

Rest before serving: Allow the dish to rest for 10 minutes before serving to develop flavors and ensure optimal texture.

Equipment Needed

  • Dutch oven or heavy casserole dish
  • Chef's knife
  • Cutting board
  • Wooden spoon
  • Oven-safe serving dish

Allergy Warnings

Review all components for possible allergens and seek medical guidance if needed.
  • Contains dairy from cheese.
  • Contains gluten in baguette; use gluten-free bread for sensitivity.
  • Worcestershire sauce may contain soy and fish allergens; verify labels.

Nutrition Info (for each serving)

Details here are for your reference and aren't a substitute for professional advice.
  • Total Calories: 545
  • Total Fat: 27 grams
  • Carbohydrates: 31 grams
  • Proteins: 41 grams