We took the comforting flavors of French onion soup and turned them into an easy bistro-style steak dinner. Tender filet mignon gets smothered with sweet caramelized onions and topped by a crispy, Swiss cheese-covered crostini. Serve with green beans and smashed potatoes with buttermilk and chives.

EatingWell Test Kitchen
Source: EatingWell Magazine, November/December 2010


Recipe Summary

45 mins


Ingredient Checklist


Instructions Checklist
  • Sprinkle steaks with dried onion, 1/8 teaspoon salt and pepper. Heat 1 1/2 teaspoons oil in a medium skillet over medium-high heat. Add the steaks and reduce the heat to medium. Cook, turning once, until desired doneness, 3 to 6 minutes per side for medium-rare. Transfer the steaks to a plate and tent with foil.

  • Position a rack in upper third of oven. Preheat broiler.

  • Add the remaining 1 1/2 teaspoons oil to the pan. Add onion and sherry, cover and cook over medium heat, stirring occasionally, until the onion is tender and golden brown and the liquid has evaporated, 6 to 8 minutes. Sprinkle flour over the onion and stir to coat. Add broth, thyme and the remaining 1/8 teaspoon salt; cook until bubbling and thickened, about 1 minute more.

  • Remove from the heat and return the steaks and any accumulated juice to the pan. Pile up some of the onions on top of the steaks. Top each steak with a slice of baguette and some cheese. Transfer the pan to the oven and broil until the cheese is melted and bubbling, about 2 minutes. Serve the steaks with the onions and sauce.


Note: Sherry is a type of fortified wine originally from southern Spain. “Cooking sherry” sold in many supermarkets can be high in sodium. Instead, get dry sherry that's sold with other fortified wines at your wine or liquor store.

Nutrition Facts

358 calories; protein 29.4g; carbohydrates 20.4g; dietary fiber 2.5g; sugars 8.8g; fat 17.1g; saturated fat 5.3g; cholesterol 81.6mg; vitamin a iu 138IU; vitamin c 8.6mg; folate 50.1mcg; calcium 156.1mg; iron 3.4mg; magnesium 38mg; potassium 553.8mg; sodium 509.8mg; thiamin 0.2mg.

Reviews (8)

Read More Reviews
13 Ratings
  • 5 star values: 9
  • 4 star values: 4
  • 3 star values: 0
  • 2 star values: 0
  • 1 star values: 0
Rating: 5 stars
This was steak recipe was fabulous My husband really liked this recipe said this one was a keeper Pros: Easy to make Read More
Rating: 5 stars
Added mushrooms with onions... Fabulous dinner!!!! Read More
Rating: 5 stars
Husband loved it for anniversary Not only did the food taste good but it looked good too. Pros: easy and delicious Cons: had some trouble with the batter on the onions Read More
Rating: 4 stars
We've made this with ground chuck as a cheaper version and it was delicious. Chopped parsley mixed with the meat dredged the patties in flour and seasoning then fried in olive oil until brown. Then put in the onion soup mix to finish cooking. A much cheaper alternative to filet mignon and very tasty! Pros: Really Good Read More
Rating: 5 stars
Its a keeper!!!!... we allways did our filet mignon on the grill..not anymore!! We won't recommend this recipe... we want to keep it OUR secret!! Pros: Very tasty easy to prepare make sure you have a bottle of wine to tag along Cons: cut the salt in half because of high sodium Read More
Rating: 5 stars
Delicious Filet My family LOVES this recipe! I've made it numerous times using both beef and venison. Quick enough for an un-hurried weeknight meal but fancy enough for company. We served it with a side salad and mashed potatoes. Also was out of the called for cheese and substituted mozzarella just as equally delicious!! Pros: Easy to make while cooking your sides. Read More
Rating: 5 stars
Great Date Night Meal In I loved the tender filet and the great flavor of the sauce and the cheese bread (I used provolone instead of swiss just because I;m not a fan of swiss). My husband and I are already planning this meal again to share with others! Pros: Lots of flavor and easy to do Read More
Rating: 4 stars
Tasted awesome just not a huge fan of thyme to began with but still really good and my boyfriend loved it!! He even ate why I couldn't finish haha! Read More
Rating: 5 stars
Special Occasion Meal I picked this recipe out for a valentine's day celebration and to my surprise before I had a chance to prepare it my boyfriend did all the work. It was fantastic. Tastes exactly like French onion soup but with the extra protein and flavor added by the steak. This will be a keeper recipe for romantic dinners.:) Read More