This easy low-carb Mexican Beef Casserole has mild flavors of green chiles combined with onions, garlic, ground beef, cheese and Mexican spices making this hot dish delicious and satisfying. The milk, egg, and flour form a quiche-like top layer.
These easy Mexican casseroles for two are very versatile. You can add in your favorite ingredients like tomato or refried beans. It can also be served for breakfast, lunch or dinner.

Ever since starting this blog and downsizing recipes to make for the two of us, I have been on the look out for dishes, pans, and gadgets that make cooking for two easy and convenient.
This week I bought new round 20 ounce oven safe soup bowls which are the perfect size for these casseroles.
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How to make Easy Mexican Casseroles:
Preheat the oven to 325 degrees F.
Coat two 20 ounce individual oven safe baking dishes with non-stick spray. Click for 20 ounce oven safe dishes.
Dice the onion.
Pour the olive oil into a medium frying pan over medium heat and cook the ground beef and onion about 5 minutes. Drain off any excess grease from the beef.
Add the garlic, green chiles, cumin, oregano, and chili powder.

Sprinkle in salt and pepper to taste. Stir until well mixed.
Layer half of the beef mixture on the bottom of each of the dishes.

Next layer half of the cheese in each dish.

In a small bowl combine the egg and milk with a whisk.
Add the flour a little at a time to avoid lumps.
Pour half of the egg mixture over the top layer of cheese in each dish.
Sprinkle green onion, if using, over each dish.

Place the dishes on a baking sheet and bake for about 30 minutes. Click here for a baking sheet.
Garnish with additional green onion if desired.

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Mexican Beef Casserole
This easy low-carb Mexican Beef Casserole has mild flavors of green chiles combined with onions, garlic, ground beef, cheese and Mexican spices making this hot dish delicious and satisfying. The milk, egg, and flour form a quiche-like top layer.
Ingredients
- Non-stick spray
- 1/2 Tablespoon olive oil
- 1/2 lb ground beef
- 1/4 onion
- 1/2 teaspoon minced garlic
- 7 oz can diced green chiles
- 1/4 teaspoon ground cumin
- 1/4 teaspoon oregano leaves
- 1/2 Tablespoon Chili powder
- Salt and pepper to taste
- 1/2 cup shredded Monterey Jack cheese
- 1/4 cup shredded mild cheddar cheese
- 1 egg
- 1/3 cup milk
- 1/8 cup flour
- 1/8 cup Green onion for garnish (diced)
Instructions
- Preheat the oven to 325 degrees F (160 C).
- Coat two 20 ounce individual oven safe baking dishes with non-stick spray. Click for 20 ounce oven safe baking dishes.
- Dice the onion.
- Pour the olive oil into a medium frying pan over medium heat and cook the ground beef and onion about 5 minutes. Drain off any excess grease from the beef.
- Add the garlic, green chiles, cumin, oregano, and chili powder.
- Sprinkle in salt and pepper to taste. Stir until well mixed.
- Layer half of the beef mixture on the bottom of each of the dishes.
- Next layer half of the cheese in each dish.
- In a small bowl combine the egg and milk with a whisk.
- Add the flour a little at a time to avoid lumps.
- Pour half of the egg mixture over the top layer of cheese in each dish.
- Sprinkle green onion, if using, over each dish.
- Place the dishes on a baking sheet and bake for about 30 minutes. Click for a baking sheet.
- Garnish with additional green onion if desired.
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Nutrition Information:
Yield:
2Serving Size:
1Amount Per Serving: Calories: 644Total Fat: 41gSaturated Fat: 18gTrans Fat: 1gUnsaturated Fat: 19gCholesterol: 237mgSodium: 642mgCarbohydrates: 21gFiber: 3gSugar: 8gProtein: 49g
Nutrition information is a guideline only, is calculated automatically by third party software, and absolute accuracy is not guaranteed.

Steve
Sunday 8th of May 2022
Can this Recipe be made in one 9”x9” baking dish? It really sounds delicious.
Zona
Monday 9th of May 2022
Hi Steve, yes that should work fine. Enjoy!
Shirley
Thursday 27th of May 2021
Can you make this ahead of time and freeze?
Zona
Thursday 27th of May 2021
Hi Shirley, I have not tried freezing this casserole. I think, based on the ingredients and steps, that it should be ok to freeze before baking. I would also let it thaw overnight in the refrigerator before baking it in the oven for best results. If you decided to try it, let me know how it turns out for you :)
Marcy
Friday 18th of October 2019
I can only find 17 ounce ramekins. Will that work for the Mexican casserole recipe ?
Zona
Friday 18th of October 2019
Hi Marcy, I think 17 oz would be fine. Just make sure they aren't over flowing when your adding the ingredients to them. Thanks for your question :)