Keto French Onion Cube Steak

If you’re craving the rich, savory flavor of French onion soup — but without the bread and extra carbs — this recipe is going to make your taste buds happy. My Keto French Onion Cube Steak has all that classic French onion flavor with tender, juicy beef smothered in caramelized onions and a silky low-carb gravy. It’s a hearty, budget-friendly dish that’s easy enough for a weeknight but impressive enough for guests.

A New Twist on Comfort Food

This recipe is a welcomed change of flavor compared to most keto or low-carb dinners. I love French onion soup, but let’s be honest — the best part is usually the melted cheese and croutons floating on top. This recipe gives you all that flavor without the bread, thanks to slow-cooked onions, rich beef broth, and a touch of cream and cheese.

Another bonus? It’s economical. Cube steak is an affordable cut of beef, though not every grocery store carries it. When I went to my local Sprouts, they told me they don’t have a cuber — so you might need to check at a traditional butcher, local market, or grocery store with a full-service meat department.

 Ingredients (Serves 4)

• 4 cube steaks (about 1½–2 pounds total)
• Salt and black pepper, to taste
• 1 teaspoon garlic powder
• ½ teaspoon onion powder
• 1–2 tablespoons olive oil or avocado oil
• 2 tablespoons butter (or ghee)
• 1 large yellow onion, thinly sliced
• 1–cup beef broth (no sugar added)
• 1 tablespoon Worcestershire sauce (check for low-sugar brands)
• 1 tablespoon homemade French onion soup mix (recipe below)
• 2–3 tablespoons heavy cream (optional for richness)
• ⅛ teaspoon xanthan gum (or your favorite low-carb thickener)
• ½ cup shredded Swiss, Gruyère, or mozzarella cheese (optional, for topping)

 Homemade French Onion Soup Mix

Skip the store-bought packets loaded with sugar, cornstarch, and mystery ingredients. Here’s a clean, low-carb version you can mix up in minutes:

• ¼ cup dried minced onion
• 2 tablespoons beef bouillon powder (no added sugar)
• 1 teaspoon onion powder
• ½ teaspoon garlic powder
• ½ teaspoon parsley flakes
• ½ teaspoon black pepper

Stir everything together and store in a small jar. Use about 1 tablespoon per recipe.

👩‍🍳 Instructions

1. Season the Steaks
   Pat cube steaks dry and season both sides with salt, pepper, garlic powder, and onion powder.
2. Sear the Meat
   In a large skillet, heat oil and 1 tablespoon butter over medium-high heat. Sear steaks 3–4 minutes per side until browned. Remove and set aside.
3. Caramelize the Onions
   Add the remaining butter and sliced onions to the pan. Sauté slowly for 10–15 minutes until golden brown and soft.
4. Make the Gravy
   Stir in your homemade soup mix, beef broth, and Worcestershire sauce. Scrape up the browned bits from the bottom of the pan for flavor.
5. Thicken and Enrich
   Sprinkle in a pinch of xanthan gum (or whisk in a slurry) and let the sauce thicken slightly. Stir in heavy cream if using.
6. Finish the Dish
   Nestle the cube steaks back into the pan. Spoon onions and gravy over the top. Add cheese if desired and let it melt over low heat for a few minutes before serving.

🥗 Serving Ideas

I served mine with a simple green salad for a nice presentation and a crisp contrast to the rich gravy.
Other keto-friendly sides that pair beautifully:

• Cauliflower mash or roasted cauliflower
• Buttered green beans
• Sautéed zucchini ribbons
• Roasted mushrooms or asparagus

🔢 Nutrition (Per Serving)

Estimates will vary depending on your ingredients and portion sizes.

💭 Final Thoughts

This Keto French Onion Cube Steak recipe checks every box — easy, economical, and packed with flavor. It’s one of those dishes that feels indulgent but fits perfectly into a low-carb lifestyle. You’ll get all the satisfaction of French onion soup — caramelized onions, savory gravy, and a touch of melted cheese — without missing the bread one bit.

Keto French Onion Cube Steak

An interesting combination of flavors for an awesome keto dinner of french onion cube steak.

Print Recipe Pin Recipe

Course Main Course

Cuisine American, French

Servings 4

Calories 505 kcal

Ingredients

  

• 4 Cube steaks / minute steaks
• Salt & black pepper to taste
• 1 tsp Garlic powder optional
• 1/2 tsp Onion powder
• 2 tbsp Olive oil or avocado oil for searing
• 2 tbsp Butter for flavor and fat
• 1 Yellow or white onion thinly sliced Onions add carbs (~5–7 g net per cup), so moderate amount
• 1 cup Beef broth
• 1 tbsp Worcestershire sauce or coconut aminos
• 1 tbsp Dry French onion soup mix low sugar / homemade ~1 Tbsp or use a low-carb version (see notes)
• 2-3 tbsp l Heavy cream or sour cream to add creaminess, optional
• Xanthan gum or glucomannan a small pinch 1/8 to ¼ tsp as a low-carb thickener
• Optional Shredded cheese (Swiss, gruyere, mozzarella)

Instructions

 

• Prep the steaks
• Pat steaks dry, season both sides with salt, pepper, garlic powder, onion powder.
• Optionally, you can lightly dust with a low-carb flour substitute (e.g. almond flour or very light coating of crushed pork rinds), though it’s not necessary.
• Sear / brown
• In a heavy skillet (cast iron is ideal), heat oil + a bit of butter over medium-high heat.
• Sear steaks for 3–4 minutes per side until nicely browned. Remove from pan and set aside.
• Cook the onions
• In the same skillet, reduce heat a bit and add onions (and some more butter or oil if needed).
• Sauté slowly, stirring, until they’re softened and starting to caramelize (15-20 minutes). Don’t rush this — good onion flavor is key.
• Deglaze & build gravy
• Pour in beef broth and Worcestershire, scraping up browned bits from bottom of pan.
• Stir in the dry French onion mix (or your homemade seasoning) to help flavor the sauce.
• Thicken (low-carb style)
• Combine a small pinch of xanthan gum or glucomannan with a little cold water (a slurry), then whisk into the pan.
• Simmer gently until the gravy thickens.
• Taste and adjust seasoning (salt, pepper) as needed.
• Return steaks & finish
• Nestle the browned steaks back into the gravy.
• If using, stir in a little heavy cream or sour cream to enrich the sauce.
• Top each steak with cheese (if desired). If the skillet is ovenproof, you can place it under a broiler just long enough to melt the cheese.
• Serve

Notes

Onions are moderate in carbs, so keep their quantity in check (e.g. 1 onion rather than 3).
The “French onion soup mix” often has added sugars or starches; you can make your own by combining onion powder, beef bouillon powder, garlic powder, parsley, and optionally some dried herbs.
Using xanthan gum (or similar) lets you thicken without cornstarch or flour.
If using cheese and a bit of cream, you add some fat (good for keto) with minimal carbs.

Keyword cubed steak, dinner for two, french onion, gravy,, italian low carb, keto