Keto Beef & Bean Gratin (Low-Carb Version)
A traditional beef-and-bean gratin is usually too high in carbohydrates for a ketogenic diet because beans contain significant amounts of starch. This keto adaptation uses a smaller quantity of low-net-carb beans (optional) and emphasizes seasoned beef, cheese, and a creamy gratin topping.
Yield
6 servings
Nutrition (Approximate Per Serving)
Calories: 520
Protein: 33 g
Fat: 38 g
Total Carbohydrates: 10 g
Fiber: 4 g
Net Carbs: 6 g
Values vary depending on ingredients used.
Ingredients
Beef Layer
2 lb (900 g) ground beef (80/20 preferred)
1 medium onion, finely diced
4 cloves garlic, minced
1 tbsp olive oil (if needed)
1 tsp sea salt
½ tsp black pepper
1 tsp smoked paprika
1 tsp ground cumin
1 tsp dried oregano
½ tsp chili powder
1 tbsp tomato paste
½ cup beef broth
1 tbsp Worcestershire sauce (check for low sugar)
Bean Layer (Optional Keto Version)
For strict keto, omit entirely.
For a small bean component:
1 cup cooked black soybeans (much lower carb than regular black beans)
½ tsp cumin
Pinch salt
Creamy Gratin Sauce
4 oz (115 g) cream cheese, softened
½ cup heavy cream
½ cup sour cream
1 tsp Dijon mustard
¼ tsp garlic powder
¼ tsp onion powder
Salt and pepper to taste
Cheese Topping
1½ cups shredded cheddar cheese
1 cup shredded mozzarella
¼ cup grated Parmesan
Garnish
Fresh parsley, chopped
Sliced green onions
Optional: diced avocado
Optional: sour cream
Equipment
12-inch skillet
Mixing bowl
9 × 13-inch baking dish
Cheese grater
Measuring cups and spoons
Preparation
Step 1: Prepare the Oven
Position rack in the center of the oven.
Preheat oven to 375°F (190°C).
Lightly grease the baking dish.
Step 2: Brown the Beef
Heat skillet over medium-high heat.
Add olive oil if beef is lean.
Add onions and cook 4–5 minutes until softened.
Stir in garlic and cook 30 seconds.
Add ground beef.
Break beef into small crumbles while cooking.
Cook until:
No pink remains.
Moisture has mostly evaporated.
Beef develops some browning.
This usually takes 8–10 minutes.
Step 3: Season the Filling
Add:
Salt
Pepper
Smoked paprika
Cumin
Oregano
Chili powder
Cook 1 minute.
Add:
Tomato paste
Worcestershire sauce
Cook another minute.
Pour in beef broth.
Simmer 3–5 minutes until slightly reduced.
The mixture should be moist but not soupy.
Step 4: Prepare the Bean Layer
If using black soybeans:
Rinse and drain thoroughly.
Toss with cumin and salt.
Warm briefly in a small saucepan or microwave.
This prevents cold spots in the casserole.
Step 5: Make the Gratin Sauce
In a bowl combine:
Cream cheese
Heavy cream
Sour cream
Dijon mustard
Garlic powder
Onion powder
Whisk until smooth.
Season lightly with salt and pepper.
The sauce should be thick but spreadable.
If too thick:
Add 1–2 tablespoons heavy cream.
Step 6: Assemble the Gratin
Spread ingredients in layers.
Layer 1
All beef mixture.
Press gently into an even layer.
Layer 2
Black soybeans (if using).
Distribute evenly.
Layer 3
Spread creamy gratin sauce across the surface.
Use an offset spatula or spoon.
Layer 4
Combine:
Cheddar
Mozzarella
Parmesan
Sprinkle evenly over the entire dish.
Step 7: Bake
Bake uncovered at 375°F (190°C) for:
20–25 minutes
The gratin is ready when:
Cheese is melted.
Edges are bubbling.
Internal temperature reaches 165°F (74°C).
Step 8: Brown the Top
For a golden crust:
Switch oven to broil.
Broil 1–3 minutes.
Watch continuously.
The cheese can burn quickly.
Step 9: Rest
Allow the gratin to rest:
10 minutes before serving.
This helps the layers set and improves texture.
Chef’s Tips
For Maximum Flavor
After browning, allow some beef to develop dark caramelized spots before stirring.
For Extra Richness
Mix 2 oz (60 g) softened cream cheese directly into the beef filling.
For More Heat
Add:
1 diced jalapeño
¼ tsp cayenne pepper
For Crispier Topping
Mix 2 tbsp grated Parmesan into the top layer during the last 5 minutes of baking.
Variations
Bacon Keto Gratin
Add:
8 slices cooked bacon, chopped
Fold into the beef mixture.
Mexican-Style Keto Gratin
Add:
Jalapeños
Cilantro
Pepper jack cheese
Serve with avocado.
Mushroom Beef Gratin
Sauté:
8 oz (225 g) sliced mushrooms
Cook until moisture evaporates and add to the beef.
Storage
Refrigerator
Store covered for up to 4 days.
Freezer
Freeze portions for up to 3 months.
Wrap tightly to prevent freezer burn.
Reheating
Oven
350°F (175°C)
15–20 minutes
Microwave
Medium power
2–3 minutes per serving
Serving Suggestions
Pair with:
Cauliflower Rice
Roasted Broccoli
Garlic Butter Green Beans
Mixed leafy salad with olive oil vinaigrette
The result is a rich, cheesy casserole with savory beef, creamy gratin layers, and a browned crust while keeping net carbs low enough for most ketogenic meal plans.
