Mexican Casserole: The Cheesy, Flavor-Packed Dinner You’ll Make on Repeat

When dinner needs to be hearty, flavorful, and completely satisfying, this Mexican Casserole checks all the boxes. It’s got layers of seasoned ground beef, tender rice, rich tomatoes, and a glorious blanket of melted cheddar cheese—finished with a cool dollop of sour cream. The result? A comfort-food classic that’s easy to make and even easier to love.

Whether you’re feeding a hungry family or meal prepping for the week, this dish is a reliable, fuss-free favorite that brings Mexican-inspired flavor to your table with just a few pantry staples.


🌟 Why I Love This Mexican Casserole

  • Quick to assemble: Ready for the oven in 10 minutes flat.
  • Budget-friendly ingredients: Beef, rice, cheese—you probably have most of it already.
  • Versatile: Customize with beans, veggies, or extra spice.
  • Casserole magic: Cheesy, saucy, comforting—all in one dish.

🛒 Ingredients

  • 🍖 1 lb ground beef
  • 🌶 1 packet taco seasoning (or 2 tbsp homemade mix)
  • 🍅 1 (14.5 oz) can diced tomatoes, undrained
  • 🍚 1 cup cooked white or brown rice
  • 🧀 1 ½ cups shredded cheddar cheese
  • 🧴 1 cup sour cream (for topping)
  • 🧂 Salt and pepper to taste

🔁 Ingredient Swaps & Add-Ins

  • Protein swap: Ground turkey or chicken works great too.
  • Add veggies: Stir in black beans, corn, or chopped bell peppers.
  • Cheese variety: Try pepper jack, Monterey Jack, or a Mexican blend.
  • Spice it up: Add sliced jalapeños or a pinch of cayenne.

👨‍🍳 Instructions

  1. Preheat your oven to 375°F (190°C).
  2. Brown the beef in a skillet over medium heat until no longer pink. Drain excess grease if needed.
  3. Add taco seasoning and diced tomatoes to the skillet. Stir to combine and let simmer for 2–3 minutes.
  4. In a baking dish, layer the cooked rice on the bottom.
  5. Spoon the beef mixture over the rice, spreading it evenly.
  6. Top with shredded cheddar cheese, covering the surface completely.
  7. Bake for 15–20 minutes, until the cheese is bubbly and melted.
  8. Serve hot, topped with a generous spoonful of sour cream.

💡 Tips for Success

  • Use day-old rice for better texture and less sogginess.
  • Let it rest for 5 minutes after baking so it sets up for easier slicing.
  • Want extra crunch? Sprinkle some crushed tortilla chips on top before baking!

🍽️ Serving Suggestions & Pairings

Balance out the richness of this casserole with some bright, fresh, or crunchy sides:

If you’re throwing a party or feeding a big group, set up a DIY taco night alongside this with ideas from This Walking Taco Bar or pair with These Sheet Pan Quesadillas.


🧊 Storage & Leftover Tips

  • Fridge: Store leftovers in an airtight container for up to 4 days.
  • Freezer: Freeze portions for up to 2 months. Thaw overnight and reheat in the oven or microwave.
  • Reheat tip: Add a splash of broth or water when reheating to keep it moist.

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📝 Final Thoughts

This Mexican Casserole is everything you want in a weeknight meal—simple, hearty, full of flavor, and totally customizable. It’s comfort food with a kick, and best of all, it’s a guaranteed family favorite.

If you try it, let me know in the comments or tag us @ChefManiac! And if you love recipes like this, make sure to follow for more quick, cozy dinners and flavor-packed favorites.