Golden melted cheese, buttery caramelized onions, and seared beef tucked between big tubes of rigatoni—this creamy French onion beef pasta brings everything you love about French onion soup to a hearty pasta dinner. The sauce combines beef broth, garlic, thyme, and cream, with Gruyère melted into every bite and a bubbling layer of cheese on top.
This is the kind of dinner to make when the weather turns chilly and you want something worth sitting down for. Serve it straight from the skillet with warm crusty bread and a crisp salad. If you love my creamy French onion ditalini or French onion meatloaf, this steak and rigatoni version belongs on your dinner list.
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Why You’ll Love This French Onion Beef Pasta
- Deep onion flavor: Slowly caramelized onions give the sauce its sweet, savory backbone.
- Seared steak: Bite-sized pieces of sirloin make this a hearty main dish.
- Creamy sauce and melted cheese: Gruyère adds nutty flavor, while mozzarella gives the topping extra stretch.
- No canned soup needed: Beef broth, onions, garlic, and pantry ingredients build the sauce.
- Prep-ahead option: Caramelize the onions ahead to make dinner easier.
What Is French Onion Beef Pasta?
French onion beef pasta combines caramelized onions, beef, pasta, and melted cheese in a savory sauce inspired by French onion soup. This version uses seared sirloin and rigatoni, with a touch of cream to bring the sauce together.
The rigatoni catches the sauce inside its tubes, while the caramelized onions wrap around the pasta and beef. A quick trip under the broiler creates that golden cheese topping.
Ingredients
Beef and Pasta
- 12 ounces dry rigatoni
- 1½ pounds top sirloin steak, trimmed and cut across the grain into bite-sized strips, about ½ inch thick
- 1 tablespoon olive oil
- ½ teaspoon fine sea salt, plus more for the pasta water and to taste
- ½ teaspoon freshly ground black pepper
For the French Onion Sauce
- 3 tablespoons unsalted butter
- 3 large yellow onions, about 1½ pounds total, thinly sliced
- ¼ teaspoon fine sea salt
- 4 garlic cloves, minced
- 1 teaspoon fresh thyme leaves, or ½ teaspoon dried thyme
- 1 tablespoon all-purpose flour
- ½ cup dry white wine, or additional low-sodium beef broth
- 1½ cups low-sodium beef broth
- 1 tablespoon Worcestershire sauce
- 1 teaspoon Dijon mustard
- ¾ cup heavy cream
- 1½ cups freshly shredded Gruyère cheese, divided
- ½ cup freshly shredded low-moisture mozzarella cheese
- Up to 1 cup reserved pasta water, as needed
- Chopped fresh parsley or additional thyme, for serving
Ingredient Notes
Choose a quick-cooking cut of beef. Top sirloin works well here; strip steak or ribeye are alternatives. Stew meat and chuck roast need a longer cooking method and will not become tender during a short sear.
Use yellow onions for balanced flavor. Three large onions look like a lot at first, but they cook down considerably. Slice them evenly so they soften at a similar rate.
Shred your own cheese. Freshly shredded Gruyère melts smoothly into the sauce. Swiss cheese makes a good substitute.
Start with low-sodium broth. The Worcestershire sauce and cheese contribute salt, so adjust the final seasoning after adding them.
How to Make Creamy French Onion Beef Pasta
1. Sear the Beef
Pat the beef dry and season with ½ teaspoon salt and the black pepper.
Heat the olive oil in a large, deep, broiler-safe skillet over medium-high heat. Sear the beef in two batches, giving the pieces room to brown. Cook for about 2–3 minutes per batch, turning to brown the surfaces. The beef will finish heating in the sauce later.
Transfer to a plate along with any accumulated juices. Reduce the heat to medium-low. If any pan residue is blackened rather than brown, wipe that portion away before continuing.
2. Caramelize the Onions
Melt the butter in the same skillet. Add the sliced onions and ¼ teaspoon salt, stirring to coat.
Cook over medium-low heat for 35–45 minutes, stirring every few minutes, until deeply golden, soft, and jammy. They may need longer depending on the pan and their moisture content. Add a tablespoon or two of water whenever the browned bits threaten to burn.
For more help, see my guide on how to caramelize onions. Use their deep golden color and soft texture as your guide.
3. Cook the Rigatoni
During the last 15 minutes of cooking the onions, bring a large pot of salted water to a boil. Cook the rigatoni until just al dente according to the package directions.
Reserve 1 cup of the pasta water before draining. Do not rinse the pasta.
4. Build the Creamy French Onion Sauce
Stir the garlic and thyme into the caramelized onions and cook for 30 seconds. Sprinkle in the flour and cook, stirring, for 1 minute.
Pour in the wine or additional broth, scraping up the browned bits. Simmer for 2–3 minutes, until the liquid has reduced by about half.
Gradually stir in the 1½ cups beef broth, Worcestershire sauce, and Dijon mustard. Simmer gently for 4–5 minutes, stirring occasionally, until slightly thickened.
Add the heavy cream and warm through at a gentle simmer. Reduce the heat to low and stir in 1 cup of the Gruyère a handful at a time until melted.
5. Add the Pasta and Beef
Add the drained rigatoni, seared beef, and any juices from the plate. Toss gently over low heat until the beef is cooked to your liking and everything is hot.
Add reserved pasta water a few tablespoons at a time until the sauce generously coats the pasta. Keep it slightly loose because it will thicken as it stands. Taste and adjust the salt and pepper.
6. Broil the Cheese Topping
Heat the broiler. Sprinkle the remaining ½ cup Gruyère and the mozzarella over the pasta.
Place the skillet under the broiler, following your pan’s heat limits, for about 1–3 minutes, just until the cheese bubbles and develops golden spots. Watch closely.
Let stand for 3–5 minutes, then finish with parsley or thyme and freshly cracked black pepper.
No broiler-safe skillet? Transfer the hot pasta to a broiler-safe baking dish before topping with cheese. For a stovetop finish, cover the skillet over low heat until the cheese melts.
Tips for the Best French Onion Beef Pasta
- Give the onions time. Soft, translucent onions are an early stage; wait for a deep golden color and jammy texture.
- Sear the beef in batches. Crowding the skillet encourages steaming and limits browning.
- Slice across the grain. Shorter muscle fibers make the steak easier to chew.
- Keep the sauce gentle. Once the cream and cheese are added, avoid a hard boil.
- Save the pasta water. A splash loosens the sauce without adding more cream.
- Broil briefly. Everything is already hot; the topping only needs enough time to melt and brown.
For another creamy beef dinner, try my cowboy butter ground beef and noodles.
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Variations and Substitutions
French onion ground beef pasta: Replace the steak with 1½ pounds ground beef. Brown it completely, drain excess grease, and remove it before cooking the onions. Return it to the sauce with the pasta.
Add mushrooms: Sauté 8 ounces of sliced mushrooms separately until browned, then fold them into the finished sauce.
Skip the wine: Substitute ½ cup additional low-sodium beef broth.
Change the pasta: Penne, cavatappi, or medium shells can replace the rigatoni. Use the same dry weight and follow the package cooking time.
Use Swiss cheese: Substitute Swiss for the Gruyère and keep the mozzarella topping.
What to Serve with French Onion Beef Pasta
Pair this rich pasta with something crisp or green. My shaved Brussels sprout Caesar salad adds crunch, while this Greek salad with lemon vinaigrette brings a bright, tangy contrast.
Warm baguette slices, roasted broccoli, or simple green beans also make easy sides. Keep the bread handy for the caramelized onion sauce left in the bowl.
French Onion Beef Pasta with Melted Gruyère
This creamy French onion beef pasta combines tender seared sirloin, rigatoni, and sweet caramelized onions in a rich sauce topped with melted Gruyère and mozzarella. A hearty comfort food dinner inspired by the savory flavors of French onion soup.
- Prep Time: 15 minutes
- Cook Time: 65 minutes
- Total Time: 1 hour 20 minutes
- Yield: 4–6 servings 1x
- Category: DINNER | PASTA
- Method: broiler, STOVETOP
- Cuisine: American
Ingredients
Beef and Pasta
- 12 ounces dry rigatoni
- 1½ pounds top sirloin steak, trimmed and sliced across the grain into bite-sized strips about ½ inch thick
- 1 tablespoon olive oil
- ½ teaspoon fine sea salt, plus more for pasta water and to taste
- ½ teaspoon freshly ground black pepper
French Onion Sauce and Cheese Topping
- 3 tablespoons unsalted butter
- 3 large yellow onions, about 1½ pounds total, thinly sliced
- ¼ teaspoon fine sea salt
- 4 garlic cloves, minced
- 1 teaspoon fresh thyme leaves, or ½ teaspoon dried thyme
- 1 tablespoon all-purpose flour
- ½ cup dry white wine, or additional low-sodium beef broth
- 1½ cups low-sodium beef broth
- 1 tablespoon Worcestershire sauce
- 1 teaspoon Dijon mustard
- ¾ cup heavy cream
- 1½ cups freshly shredded Gruyère cheese, divided
- ½ cup freshly shredded low-moisture mozzarella cheese
- Up to 1 cup reserved pasta water, as needed
- Chopped fresh parsley or thyme, for garnish
Instructions
- Sear the beef. Pat the steak dry and season with ½ teaspoon salt and the black pepper. Heat olive oil in a large, deep, broiler-safe skillet over medium-high heat. Sear the beef in two batches for about 2–3 minutes per batch, turning to brown the surfaces. Transfer to a plate, reserving any juices. The beef will finish cooking in the sauce.
- Caramelize the onions. Reduce heat to medium-low and melt the butter in the same skillet. Add the onions and ¼ teaspoon salt. Cook for 35–45 minutes, stirring regularly, until deeply golden, soft, and jammy. Add a tablespoon or two of water whenever the browned bits threaten to burn. The onions may need additional time depending on your pan.
- Cook the pasta. During the last 15 minutes of cooking the onions, bring a large pot of salted water to a boil. Cook rigatoni until just al dente according to package directions. Reserve 1 cup pasta water, then drain without rinsing.
- Add garlic and flour. Stir garlic and thyme into the caramelized onions and cook for 30 seconds. Sprinkle in the flour and cook, stirring, for 1 minute.
- Deglaze the skillet. Add the wine or additional broth, scraping up the browned bits. Simmer for 2–3 minutes, until reduced by about half.
- Make the sauce. Gradually stir in the 1½ cups beef broth, Worcestershire sauce, and Dijon mustard. Simmer gently for 4–5 minutes until slightly thickened. Add the heavy cream and warm through.
- Melt in the cheese. Reduce heat to low. Stir in 1 cup Gruyère a handful at a time until melted and smooth. Avoid boiling the sauce.
- Combine. Add the cooked rigatoni, beef, and accumulated juices. Toss over low heat until everything is hot and the beef is cooked through. Add reserved pasta water a few tablespoons at a time until the sauce generously coats the pasta. Taste and adjust seasoning.
- Broil the topping. Heat the broiler. Sprinkle the remaining ½ cup Gruyère and the mozzarella over the pasta. Broil according to your skillet’s heat limits for 1–3 minutes, watching closely, until melted and lightly golden.
- Serve. Let stand for 3–5 minutes. Garnish with parsley or thyme and additional black pepper, if desired.
Notes
- Beef: Use top sirloin, strip steak, or ribeye. Stew meat and chuck roast require a longer cooking method.
- Wine substitute: Replace the wine with ½ cup additional low-sodium beef broth.
- Cheese substitute: Swiss cheese can replace Gruyère. Freshly shredded cheese melts best.
- Ground beef option: Substitute 1½ pounds ground beef. Brown completely, drain excess grease, and remove before cooking the onions. Return with the pasta.
- No broiler-safe skillet: Transfer to a broiler-safe baking dish before topping with cheese, or cover the skillet over low heat until the cheese melts.
- Make ahead: Caramelize onions up to 3 days ahead and refrigerate.
- Storage: Refrigerate leftovers promptly in an airtight container for 3–4 days.
- Reheating: Warm gently with a splash of broth or milk until hot throughout.
- Timing: Allow extra time if the onions need longer to caramelize.
Make-Ahead, Storage, and Reheating
Make ahead: Caramelize the onions up to 3 days ahead and refrigerate in an airtight container. Warm them in the skillet after searing the beef, then continue with the garlic and thyme.
Refrigerate: Refrigerate leftovers promptly in an airtight container and use within 3–4 days.
Reheat: Warm gently with a splash of broth or milk, stirring occasionally until hot throughout. The pasta absorbs sauce as it sits, so add liquid as needed.
Freeze: This dish is best fresh. Freezing and thawing can change the texture of the cream sauce, pasta, and steak.
Frequently Asked Questions
What cut of beef is best for French onion beef pasta?
Top sirloin suits quick searing and can be cut into bite-sized pieces. Strip steak or ribeye also work. Avoid substituting raw stew meat without changing the cooking method.
Can I make this without heavy cream?
Half-and-half can work, but the sauce will be thinner and less rich. Keep the heat low after adding it and avoid boiling. Whole milk produces a lighter sauce with less body.
Do I need onion soup mix?
No. Caramelized onions, beef broth, Worcestershire sauce, garlic, and thyme create the flavor without a packet of soup mix.
Can I make this in one pot?
This version uses a separate pot for the rigatoni so you can control the pasta texture and sauce consistency. For pasta cooked directly in the sauce, try my French onion ditalini recipe.
Why is my sauce too thick?
The pasta absorbs liquid, and melted cheese thickens as it cools. Stir in warm reserved pasta water or broth a little at a time until the sauce loosens.
Final Thoughts
The best part of this creamy French onion beef pasta is the combination of sweet, jammy onions and savory beef beneath that golden cheese topping. Give the onions time, keep the steak tender, and bring the skillet to the table while the cheese is still bubbling.
For another cozy dinner with those same onion-and-cheese flavors, save my French onion chicken and rice casserole for your next meal plan.
