Keto beef fricassee casserole brings together seared strips of sirloin, mushrooms, leeks, and broccoli in a creamy paprika-spiked sauce under a molten layer of melted cheese. It goes from skillet to broiler in about 45 minutes and comes out bubbling and golden at the edges. Comfort food that eats like a Sunday braise on a weeknight timeline.
A Comfort Food Classic, Reimagined!
Forget everything you thought you knew about fricassee! We’re swapping the traditional chicken for rich, savory beef in this inventive and incredibly satisfying casserole. Imagine tender strips of sirloin and a medley of low-carb vegetables, all swimming in a luscious, creamy sauce. The final touch? A generous crown of melted, bubbly cheese broiled to golden-brown perfection. This is more than just a meal; it’s a heavenly, comforting experience that will have everyone asking for seconds. Perfect for a cozy night in!
Ingredients
• 1.3 pounds / 600 g (21.2 oz) beef sirloin (rump) steak
• Salt and pepper to taste
• 1/4 cup / 55 g (1.94 oz) ghee or other healthy cooking fat, divided
• 1 small / 70 g (2.47 oz) yellow onion, chopped
• 2 cloves garlic, minced
• 2 bay leaves, crumbled
• 2 large / 128 g (4.5 oz) celery stalks, sliced
• 1 medium / 85 g (3 oz) leek, sliced
• 4 cups / 280 g (9.9 oz) sliced white mushrooms
• 1 medium / 400 g (14.1 oz) broccoli or broccolini, roughly chopped
• 1 cup / 240 ml bone broth or chicken stock
• 1/2 cup / 115 g (4.1 oz) full-fat sour cream
• 1 teaspoon paprika
• 1/8 teaspoon cayenne pepper
• 1 1/2 cups / 180 g (6.3 oz) grated Swiss or Cheddar cheese
• 2 tablespoons / 8 g (0.28 oz) freshly chopped herbs such as parsley, oregano, and thyme
Instructions
1. Slice the steak into thin strips. Season generously with salt and pepper. Heat half of the ghee in a large, oven-safe casserole dish or skillet over high heat. Working in batches, quickly fry the beef strips on both sides until well browned. Remove the beef from the dish and set aside.
2. Reduce the heat to medium-high. Add the remaining ghee and the chopped onion to the dish. Cook for 5 to 8 minutes, until softened and lightly browned. Stir in the garlic, crumbled bay leaves, celery, and leek, and cook for another 2 minutes until fragrant.
3. Add the mushrooms, broccoli, broth, sour cream, paprika, and cayenne pepper. Stir to combine, then cover with a lid. Reduce the heat to medium-low and let it simmer for 5 to 6 minutes, or until the broccoli is tender-crisp.
4. Remove the dish from the heat. Stir the cooked steak back into the vegetable mixture. Sprinkle the grated Swiss or Cheddar cheese evenly over the top.
5. Place the casserole under a preheated broiler on high. Broil for about 5 minutes, or until the cheese is completely melted, bubbling, and golden brown.
6. Carefully remove from the oven and let it cool for a few minutes. Garnish with fresh herbs before serving.
Nutritional Information
• Nutrition Facts Per Serving
• MAKES: 6 servingsPREPARATION TIME: 15 minutes + freezingCOOKING TIME: 30 minutesTotal carbs: 11 g (0.39 oz) / Fiber: 3.2 g (0.11 oz) / Net carbs: 7.8 g (0.28 oz) / Protein: 34.7 g (1.22 oz) / Fat: 34.7 g (1.22 oz) / Energy: 492 kcalMacronutrient ratio: Calories from carbs (6%), protein (29%), fat (65%)
Pro Tips
• For perfectly thin beef strips, place the steak in the freezer for 30 to 60 minutes before slicing. This firms up the meat, making it much easier to cut.
• Don’t crowd the pan when browning the beef. Cook it in batches to ensure each piece gets a beautiful, flavorful sear rather than just steaming.
• Feel free to swap the broccoli for other low-carb vegetables like cauliflower florets, sliced bell peppers, or green beans. Adjust cooking time as needed.
• For an even richer flavor, use Gruyère cheese instead of Swiss, or try a spicy Monterey Jack for a little kick.
• This casserole can be assembled up to a day in advance. Prepare through step 4, cover, and refrigerate. When ready to eat, simply top with cheese and broil until hot and bubbly.
FAQ
Q: What kind of beef is best for this fricassee casserole
A: This recipe calls for beef sirloin or rump steak, which becomes wonderfully tender. For the best results, slice it thinly against the grain. A pro tip is to freeze the steak for 30-60 minutes before cutting to make slicing easier.
Q: Is this beef casserole recipe keto-friendly
A: Absolutely. With only 7.8 grams (0.28 oz) of net carbs per serving, this creamy beef fricassee is an excellent low-carb and keto-friendly meal. It’s rich in healthy fats and protein, making it a satisfying comfort food option.
Q: Can I make this beef fricassee ahead of time
A: Yes, this is a perfect make-ahead beef casserole. Prepare the recipe through step 4, then cover and refrigerate for up to one day. When ready to eat, simply sprinkle with cheese and broil until hot and bubbly.
Q: What can I serve with this cheesy beef casserole
A: To keep the meal low-carb, serve this beef fricassee with cauliflower rice, zucchini noodles, or a simple side salad. If carbs aren’t a concern, it’s also delicious with mashed potatoes or crusty bread to soak up the creamy sauce.
Pro Tips
- For perfectly thin beef strips, place the steak in the freezer for 30 to 60 minutes before slicing — the firm meat is far easier to cut evenly.
- Don't crowd the pan when browning the beef; cook it in batches so each strip gets a real sear instead of steaming in its own liquid.
- Swap the broccoli for cauliflower florets, sliced bell peppers, or green beans if you prefer — just adjust the cooking time so everything stays tender-crisp.
- For richer flavor, use Gruyère instead of Swiss, or try a spicy Monterey Jack for a little kick in the cheese crust.
- Assemble the casserole up to a day ahead through the simmer, cover, and refrigerate — then top with cheese and broil until hot and bubbly when you're ready to eat.
Frequently Asked Questions
Can I make this fricassee casserole ahead of time?
Yes — assemble it through the vegetable simmer, cover, and refrigerate for up to a day. When ready to eat, top with the grated cheese and broil until melted and golden.
Is beef fricassee casserole keto-friendly?
Each of the 6 servings has 11 g total carbs and 3.2 g fiber, leaving 7.8 g net carbs, with 65% of calories from fat. The sour cream sauce and cheese crust carry the fat.
Can I use a different cut of beef?
The recipe uses beef sirloin (rump) steak, which cooks quickly and stays tender in this fast braise. Avoid slow-cooking cuts here — they need hours, not minutes.
How do I store and reheat leftovers?
Cool the casserole and refrigerate it in an airtight container. Reheat gently in the oven or a covered skillet so the cheese topping melts back without the sauce splitting.
Recipe card below.
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Keto Beef Fricassee Casserole
Ingredients
Method
- Slice the steak into thin strips.
- Season generously with salt and pepper.
- Heat half of the ghee in a large, oven-safe casserole dish or skillet over high heat.
- Working in batches, quickly fry the beef strips on both sides until well browned.
- Remove the beef from the dish and set aside.
- Reduce the heat to medium-high.
- Add the remaining ghee and the chopped onion to the dish.
- Cook for 5 to 8 minutes, until softened and lightly browned.
- Stir in the garlic, crumbled bay leaves, celery, and leek, and cook for another 2 minutes until fragrant.
- Add the mushrooms, broccoli, broth, sour cream, paprika, and cayenne pepper.
- Stir to combine, then cover with a lid.
- Reduce the heat to medium-low and let it simmer for 5 to 6 minutes, or until the broccoli is tender-crisp.
- Remove the dish from the heat.
- Stir the cooked steak back into the vegetable mixture.
- Sprinkle the grated Swiss or Cheddar cheese evenly over the top.
- Place the casserole under a preheated broiler on high. Broil for about 5 minutes, or until the cheese is completely melted, bubbling, and golden brown.
- Carefully remove from the oven and let it cool for a few minutes.
- Garnish with fresh herbs before serving.
- Don't crowd the pan when browning the beef.
- Cook it in batches to ensure each piece gets a beautiful, flavorful sear rather than just steaming.
