This Low Carb Mexican Casserole is the ultimate keto-friendly comfort food, packed with savory ground beef, roasted poblano peppers, and two kinds of cheese. With a creamy egg mixture and bold cumin flavor, this low-carb casserole is perfect for those following a keto or low-carb diet. It’s quick and easy to make, with minimal ingredients, making it an ideal dish for meal prep, family dinners, or weeknight meals. Top with sour cream, salsa, or guacamole for an extra burst of flavor. Enjoy a flavorful, satisfying meal thatโs both healthy and delicious!

Ingredients
- ยฝ lb ground beef
- ยฝ cup yellow onion, diced
- 2 fresh poblano peppers, roasted, peeled, and chopped
- 1 cup shredded cheddar cheese
- ยฝ cup shredded Monterey Jack cheese
- 2 eggs, beaten
- ยฝ cup heavy cream
- ยพ teaspoon cumin
- Salt and freshly ground pepper, to taste
Instructions
- Preheat the Oven
Preheat your oven to 375ยฐF (190ยฐC). - Cook the Ground Beef
Heat a medium skillet over medium heat. Add the ground beef and diced onion. Cook, breaking the beef into small pieces, until browned. Once browned, season with salt and pepper, stirring to combine. Turn off the heat. - Prepare the Egg Mixture
In a small bowl, whisk together the eggs, heavy cream, cumin, and a pinch of salt and pepper. Set aside. - Assemble the Casserole
Lightly spray an 8-inch square baking pan with avocado oil. Spread the chopped roasted poblano peppers evenly at the bottom of the pan. Next, layer the cooked ground beef mixture on top of the peppers. Sprinkle the shredded Monterey Jack and cheddar cheeses over the beef. - Bake the Casserole
Pour the beaten egg mixture over the cheese and beef layers. Bake in the preheated oven for 15-20 minutes, or until the cheeses are melted and the egg mixture has set. - Serve and Enjoy
Remove from the oven and allow the casserole to cool slightly. Cut into squares and serve with your favorite toppings like sour cream, guacamole, or salsa. Garnish with chopped parsley, green onions, or cilantro for added flavor and color.
Tips
- Make it Spicier: Add some jalapeรฑo peppers or a dash of hot sauce for a spicy kick.
- Ground Beef Alternatives: Ground turkey or chicken can be substituted for a lighter version of the casserole.
- Roasting Poblano Peppers: If you donโt have fresh poblano peppers, use canned roasted peppers or another mild chili variety.
Variations and Substitutions
- Vegetarian Option: Swap the ground beef for black beans, sautรฉed mushrooms, or a mix of other vegetables for a plant-based version.
- Dairy-Free: Use dairy-free cheese alternatives and replace heavy cream with coconut cream or unsweetened almond milk.
- Additional Veggies: Add in some diced zucchini, bell peppers, or spinach to boost the veggie content.
FAQs
Can I make this casserole ahead of time?
Yes! You can assemble the casserole and refrigerate it for up to 24 hours before baking. Just add a few extra minutes to the bake time if itโs cold from the fridge.
Can I freeze this casserole?
Yes, you can freeze the casserole before or after baking. To freeze, wrap it tightly in plastic wrap and foil, and store for up to 3 months. Reheat in the oven at 350ยฐF until warmed through.
What if I donโt like cumin?
If you donโt like cumin, try substituting with chili powder, smoked paprika, or taco seasoning for a different flavor profile.
Serving Suggestions
- Serve with a side of cauliflower rice for a complete low-carb meal.
- Top with fresh avocado slices, a dollop of sour cream, or a drizzle of salsa for added flavor.
- Pair with a simple side salad of mixed greens and a light vinaigrette to balance the richness of the casserole.
Why Youโll Love This Recipe
This Low Carb Mexican Casserole is the perfect dish for anyone following a keto or low-carb diet. Packed with rich, savory flavors from ground beef, roasted poblano peppers, and two kinds of cheese, itโs an indulgent yet healthy meal. The creamy egg and cheese filling binds everything together into a satisfying casserole, while the fresh toppings bring extra flavor and freshness. Itโs a quick, easy-to-make recipe thatโs perfect for meal prep, family dinners, or a comforting weeknight meal!
Low Carb Mexican Casserole
4
servings30
minutes10
minutesIngredients
ยฝ lb ground beef
ยฝ cup yellow onion, diced
2 fresh poblano peppers, roasted, peeled, and chopped
1 cup shredded cheddar cheese
ยฝ cup shredded Monterey Jack cheese
2 eggs, beaten
ยฝ cup heavy cream
ยพ teaspoon cumin
Salt and freshly ground pepper, to taste
Directions
- Preheat the Oven
- Preheat your oven to 375ยฐF (190ยฐC).
- Cook the Ground Beef
- Heat a medium skillet over medium heat. Add the ground beef and diced onion. Cook, breaking the beef into small pieces, until browned. Once browned, season with salt and pepper, stirring to combine. Turn off the heat.
- Prepare the Egg Mixture
- In a small bowl, whisk together the eggs, heavy cream, cumin, and a pinch of salt and pepper. Set aside.
- Assemble the Casserole
- Lightly spray an 8-inch square baking pan with avocado oil. Spread the chopped roasted poblano peppers evenly at the bottom of the pan. Next, layer the cooked ground beef mixture on top of the peppers. Sprinkle the shredded Monterey Jack and cheddar cheeses over the beef.
- Bake the Casserole
- Pour the beaten egg mixture over the cheese and beef layers. Bake in the preheated oven for 15-20 minutes, or until the cheeses are melted and the egg mixture has set.
- Serve and Enjoy
- Remove from the oven and allow the casserole to cool slightly. Cut into squares and serve with your favorite toppings like sour cream, guacamole, or salsa. Garnish with chopped parsley, green onions, or cilantro for added flavor and color.



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