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Fiesta Casserole

By Chef Melanie November 11, 2025
  • casserole
  • mexican
  • ground beef
  • quick meal
  • microwave
Difficulty Beginner
Servings 1
Estimated Cost $18.80
Fiesta Casserole

A quick and easy layered Mexican casserole with seasoned ground beef, refried beans, and melted cheese. Perfect for busy weeknights and great with tortilla chips for dipping!

Instructions

  1. 1

    In a large skillet, brown the ground beef over medium-high heat, adding chopped onion if using.

  2. 2

    Mix half of the taco seasoning package into the cooked ground beef and stir well.

  3. 3

    In a separate bowl, mix the remaining half of the taco seasoning into the refried beans until well combined.

  4. 4

    Spread the seasoned refried beans evenly in the bottom of a 2-quart baking dish.

  5. 5

    Spoon the seasoned ground beef over the bean layer, spreading evenly.

  6. 6

    Pour the nacho cheese soup over the beef layer as the top layer.

  7. 7

    Microwave on high for 8-10 minutes, or until heated completely through.

  8. 8

    Remove from microwave and top with shredded cheddar cheese, allowing it to melt from the heat.

  9. 9

    If desired, add dollops of sour cream and sprinkle with sliced olives before serving.

  10. 10

    Serve hot with tortilla chips for dipping or tortillas for scooping.

  11. 11

    **Pro Tip:** This casserole is perfect for parties - just set out bowls of toppings and let everyone customize their own portion!