Keto Ground Beef Casserole
Table of Contents
Is Keto Ground Beef Casserole the Easiest Dinner You Can Make?
Did you know that many people who give up low-carb eating say the problem is boring dinners, not hunger? This keto ground beef casserole recipe fixes that. It’s a Mexican casserole with ground beef, melted cheese, and taco spices, all baked in one dish. I make this keto ground beef casserole almost every week because it’s cheap, filling, and reheats well.
Ground beef is a keto staple. It has zero carbs, plenty of protein, and enough fat to keep you full for hours. Pair it with cream cheese, cauliflower rice, and bubbly cheddar, and you get a comforting, low-carb dinner with very little cleanup. If you’re new to low-carb eating, the Harvard T.H. Chan School of Public Health overview of the ketogenic diet is a good place to learn how it works. You can also browse more keto dinner recipes on our blog.
Ingredients for Keto Ground Beef Casserole
Here is everything you need to serve 6 people:

- 1.5 lb (680 g) ground beef, 80/20 for the best flavor
- 2 cups cauliflower rice, cooked and squeezed dry
- 1/2 medium onion, finely diced
- 2 garlic cloves, minced
- 2 tbsp sugar-free taco seasoning
- 1 can (10 oz) diced tomatoes with green chiles, drained
- 4 oz cream cheese, softened
- 1/2 cup sour cream
- 2 cups shredded Mexican-blend or cheddar cheese
- 1 jalapeño, sliced (optional)
- Toppings: chopped cilantro, sliced avocado, black olives
Easy substitutions:
- Ground turkey or ground chicken instead of beef
- Shredded zucchini (squeezed dry) instead of cauliflower rice
- Heavy cream instead of sour cream
- Pepper jack cheese for extra heat
Timing
- Prep time: 10 minutes
- Cook time: 35 minutes (10 on the stovetop, 25 in the oven)
- Total time: 45 minutes
Many baked casserole recipes take 60 minutes or more, so this keto ground beef casserole saves you about 25% of the time. It’s a good fit for a busy weeknight.
Step-by-Step Instructions
Step 1: Preheat and Prep
Heat your oven to 350°F (175°C). Lightly grease a 9×13 inch baking dish. Dice the onion and mince the garlic now, so everything is ready when the pan is hot.
Step 2: Brown the Beef
Add the ground beef to a large skillet over medium-high heat. Break it up as it cooks. After 6 to 8 minutes, when it’s no longer pink, add the onion and garlic and cook for 2 more minutes. Tip: don’t stir constantly. Letting the beef sit for a minute at a time gives it a better sear and deeper flavor.
Step 3: Build the Sauce
Stir in the taco seasoning, the diced tomatoes, and the cream cheese. Keep stirring until the cream cheese melts into a thick, creamy sauce. Tip: if it looks too thick, add a splash of beef broth.
Step 4: Layer Your Keto Ground Beef Casserole
Spread the cauliflower rice across the bottom of the baking dish. Spoon the beef mixture over it, then spread the sour cream on top. Cover everything with the shredded cheese. Add jalapeño slices if you like heat.

Step 5: Bake Until Bubbly
Bake for 20 to 25 minutes, until the cheese is melted and golden at the edges. For a browner top, broil on high for 2 minutes at the end. Watch closely, because cheese burns fast.
Step 6: Rest and Serve
Let the casserole sit for 5 minutes before slicing. This helps it hold together on the plate. Top with cilantro, avocado, and olives.
Nutritional Information
Here are the approximate values per serving (1/6 of the dish) for this keto ground beef casserole:
| Nutrient | Amount |
|---|---|
| Calories | 430 |
| Fat | 32 g |
| Protein | 29 g |
| Total carbs | 7 g |
| Fiber | 2 g |
| Net carbs | 5 g |
With only about 5 g of net carbs per serving, it fits easily within a daily keto limit of 20 to 30 g. The numbers vary slightly by brand, so check your labels, especially the taco seasoning and canned tomatoes, which can hide sugar. To double-check any ingredient, you can look it up in the USDA FoodData Central database.
Healthier Alternatives for the Recipe
You can lighten this keto ground beef casserole without losing the taco flavor:
- Use 90/10 ground beef or ground turkey to cut saturated fat.
- Swap sour cream for plain Greek yogurt for extra protein.
- Add chopped spinach or bell peppers for more fiber and vitamins.
- Use dairy-free cheese and cream cheese if you avoid dairy.
- Make your own taco seasoning (chili powder, cumin, paprika, garlic powder, oregano) to control salt and avoid additives.
Serving Suggestions
This Mexican casserole with ground beef is great on its own, but a few sides make it a full meal:
- A crisp side salad with lime-cilantro dressing, or try our keto taco salad with ground beef for a double-taco night
- Guacamole and a few pork rind “chips” for dipping
- Sautéed green beans or roasted broccoli
- A spoonful of salsa and a dollop of sour cream on top

Cut leftovers into squares and pack them for lunch. A keto ground beef casserole also works well for potlucks and family dinners, since it feeds a crowd. If your family loves cheesy beef bakes, our Big Mac casserole is another crowd-pleaser.
Common Mistakes to Avoid
- Skipping the squeeze. Wet cauliflower rice makes the dish soggy. Press out the water with a clean towel.
- Using very lean beef. Fat carries flavor and keeps the texture creamy. 80/20 works best for a keto ground beef casserole.
- Not draining the tomatoes. Extra liquid thins the sauce.
- Using pre-mixed taco seasoning with sugar. Always read the label.
- Cutting it too soon. Resting for 5 minutes lets the layers set.
Storing Tips for the Recipe
- Fridge: Cover tightly and store for up to 4 days.
- Freezer: Freeze portions in airtight containers for up to 3 months. Thaw overnight in the fridge.
- Reheat: Use the oven at 350°F for 15 minutes, or the microwave for 2 minutes. The oven keeps the cheese topping better.
- Meal prep: Brown the beef and prep the veggies up to 2 days ahead. Assemble and bake when ready.
Conclusion
This keto ground beef casserole is quick, cheesy, and full of taco flavor. Brown the beef, layer it with cauliflower rice and cheese, then bake for 25 minutes. Each serving has about 5g net carbs. Try it tonight, leave a comment below, and subscribe for more keto recipes.
FAQs
Can I freeze keto ground beef casserole?
Yes. Cool it fully, wrap it well, and freeze for up to 3 months. Thaw overnight in the fridge before reheating.
How many carbs are in keto ground beef casserole?
About 7 g total carbs and 5 g net carbs per serving, based on 6 servings.
Can I make this keto ground beef casserole recipe ahead of time?
Yes. Assemble it, cover, and refrigerate for up to 24 hours. Add 5 to 10 minutes to the baking time if it goes in cold.
What can I use instead of cauliflower rice?
Shredded zucchini, chopped broccoli, or shirataki rice all work. Just remove extra moisture first.
Can I make it spicier?
Add diced jalapeños, a pinch of cayenne, or use pepper jack cheese.
Is it kid-friendly?
Yes. Skip the jalapeño and use mild taco seasoning.
Keto Ground Beef Casserole
Course: DinnerCuisine: Mexican6
servings10
minutes35
minutes45
minutesA cheesy keto ground beef casserole with taco spices, cauliflower rice, and only 5g net carbs per serving. Ready in 45 minutes.
Ingredients
1.5 lb ground beef, 80/20
2 cups cauliflower rice, cooked and squeezed dry
1/2 medium onion, finely diced
2 garlic cloves, minced
2 tbsp sugar-free taco seasoning
1 can (10 oz) diced tomatoes with green chiles, drained
4 oz cream cheese, softened
1/2 cup sour cream
2 cups shredded Mexican-blend or cheddar cheese
1 jalapeño, sliced (optional)
Directions
- Preheat and prep:
Heat the oven to 350°F (175°C) and grease a 9×13 inch baking dish. - Brown the beef:
Cook the ground beef over medium-high heat for 6 to 8 minutes, then add the onion and garlic and cook for 2 more minutes. - Build the sauce:
Stir in the taco seasoning, diced tomatoes, and cream cheese until creamy. - Layer the casserole:
Spread cauliflower rice in the dish, top with the beef mixture, sour cream, and shredded cheese. - Bake:
Bake for 20 to 25 minutes until bubbly and golden. - Rest and serve:
Rest for 5 minutes, then top with cilantro, avocado, and olives.
Nutrition Facts
1 servings per container
- Amount Per ServingCalories430
- % Daily Value *
- Total Fat
32g
42%
- Total Carbohydrate
7g
3%
- Dietary Fiber 2g 8%
- Protein 29g 58%
* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.








