This easy Mexican casserole recipe combines seasoned lean ground beef, creamy refried beans, sweet whole-kernel corn, tomatoes with green chiles, black olives, tortilla chips, and melted Cheddar cheese in one comforting 9-by-13-inch dish. Prep takes about 15 minutes, and the casserole bakes at 350°F for 20 to 30 minutes, making it a practical dinner for busy weeknights.
Every bite brings together savory taco-seasoned beef, creamy beans, juicy tomatoes, salty olives, crisp-edged tortilla chips, and bubbling Cheddar. Although this recipe appears under the fruit category, it is a savory Tex-Mex casserole and contains no fruit.
This easy Mexican casserole is built for the kind of evening when you want a filling homemade dinner without a long list of complicated tasks. The beef cooks quickly in one skillet, and the remaining ingredients are opened, drained, layered, and baked in the same dish.
The finished casserole has a wonderfully varied texture. Creamy refried beans contrast with juicy tomatoes and sweet corn, while tortilla chips add a pleasant crunch around the edges and beneath the bubbling layer of Cheddar.
It is also a friendly recipe for casual family meals, potlucks, and make-ahead dinner planning. The familiar taco-seasoned flavor is hearty enough to stand on its own, yet simple enough that most diners will recognize and enjoy every ingredient.
Because the category label for this recipe is fruit, it is worth clarifying that the dish itself is not a fruit recipe. It is a savory Tex-Mex casserole containing ground beef, vegetables, beans, tortilla chips, and cheese.
Ingredients You’ll Need
The ingredient list is short, but each item contributes something important to the final dish. Gather everything before you begin so the layering process moves quickly once the beef is seasoned.
Lean ground beef: One pound provides the savory, substantial center of the casserole.
Taco seasoning: A 1-ounce packet gives the beef its recognizable Mexican-inspired spice profile.
Refried beans: The beans add creaminess and help bind the layers together.
Corn: Drain one 15-ounce can of whole-kernel corn for a naturally sweet pop in every serving.
Diced tomatoes with green chiles: Use the full 10-ounce can undrained so its juices mingle with the beef, beans, and chips.
Black olives: Drain the 2.25-ounce can before scattering the slices over the casserole.
Tortilla chips: A 12-ounce package forms the crunchy base. Choose sturdy chips that can support the toppings.
Cheddar cheese: An 8-ounce package of shredded Cheddar melts into a savory, golden topping.
No separate sauce is required because the seasoned beef, tomatoes, beans, and melted cheese provide plenty of moisture and flavor. Keep the tomatoes undrained, but drain the corn, olives, and cooked beef as directed so the casserole does not become overly watery or greasy.
How to Make It Step-by-Step
Step 1: Heat the oven to 350°F (175°C), then lightly grease a 9-by-13-inch baking dish. Greasing the dish helps with serving later and keeps melted cheese from clinging too firmly to the sides.
Step 2: Place the lean ground beef in a skillet over medium heat. Break it into small crumbles with a spoon or spatula and cook until no longer pink, stirring as needed so it browns evenly.
Step 3: Carefully drain the excess fat from the skillet. This step matters because too much rendered fat can make the tortilla chips soft and leave the casserole greasy instead of rich and balanced.
Step 4: Stir the taco seasoning into the cooked beef, adding the small amount of water requested by the packet directions. Mix until the seasoning is distributed throughout the crumbles and the beef looks moist but not soupy.
Step 5: Cover the bottom of the greased baking dish with a layer of tortilla chips. Overlap them slightly where needed, but avoid crushing them into a compact layer because some texture is desirable after baking.
Step 6: Spoon the seasoned beef over the chips, followed by the refried beans, drained corn, undrained diced tomatoes with green chiles, and drained black olives. Spread each component as evenly as possible so every serving receives a little of the beef, beans, vegetables, and olives.
Step 7: Sprinkle the shredded Cheddar over the top in an even layer. Covering the surface from edge to edge helps create the golden, bubbling cheese topping that makes this casserole so inviting.
Step 8: Bake the casserole uncovered for 20 to 30 minutes. It is ready when the center is hot, the cheese has fully melted, and a few areas of the top are lightly browned.
Step 9: Remove the dish from the oven and let it stand for a few minutes before serving. The short rest allows the layers to settle while the cheese remains warm and spoonable.
Pro Tips for the Best Casserole
Drain the ground beef with care, especially if the skillet produces a noticeable amount of fat. A well-drained filling keeps the bottom layer from becoming oily and helps the casserole hold together more cleanly.
Use sturdy tortilla chips rather than very thin chips. The chips will soften slightly from the beans, tomatoes, and beef, but a substantial chip keeps more of its texture and makes each scoop easier to serve.
For the best contrast, assemble the dish shortly before baking and serve it soon after its brief resting period. Waiting too long can allow the moisture from the fillings to soften the chips more than intended.
Keep the cheese distributed evenly instead of piling it in one thick mound. An even layer melts more consistently and gives every portion a little of the golden topping.
Optional toppings are best added after baking. A spoonful of sour cream, a little salsa, or chopped green onion can add freshness and coolness without introducing extra moisture into the casserole while it cooks.
Serving Suggestions
Serve this casserole directly from the baking dish with a broad spoon or sturdy spatula. Each portion should include some of the melted Cheddar from the top as well as the softer layers and chips underneath.
A simple green salad or a crisp vegetable side can balance the richness of the beef, beans, and cheese. You can also place sour cream and salsa on the table so everyone can finish a serving according to personal taste.
For a casual gathering, let the casserole rest briefly, then serve it family-style while it is still warm. The dish is especially inviting when the cheese is glossy and the edges show lightly browned chips.
Storage & Reheating
Store leftovers in a covered container in the refrigerator. The chips will soften as they sit, but the beef, beans, vegetables, and cheese will remain flavorful and satisfying.
Reheat portions until hot throughout, using an oven or microwave according to your preference. An oven can help the cheese warm evenly, while a microwave is convenient for a quick individual serving.
If you expect leftovers, consider serving the casserole soon after baking and refrigerating only what remains. This approach preserves as much of the tortilla chip texture as possible.
Easy Mexican Casserole
A hearty Tex-Mex casserole layered with seasoned ground beef, refried beans, corn, tomatoes with green chiles, black olives, tortilla chips, and melted Cheddar cheese. It is a simple 35 to 45-minute meal that is especially satisfying when served hot from the oven.
110-ounce canDiced tomatoes with green chiles, undrained
12.25-ounce canSliced black olives, drained
112-ounce packageTortilla chips
18-ounce packageShredded Cheddar cheese
Method
Step-by-Step
Preheat the oven to 350°F (175°C) and lightly grease a 9-by-13-inch baking dish.
Brown the lean ground beef in a skillet over medium heat, breaking it into small crumbles as it cooks. Drain away excess fat thoroughly.
Stir the taco seasoning into the cooked beef with the small amount of water called for on the seasoning packet. Simmer or stir according to the packet directions until the beef is evenly coated.
Arrange a layer of sturdy tortilla chips across the bottom of the prepared baking dish.
Layer the seasoned beef, refried beans, drained corn, undrained diced tomatoes with green chiles, and drained black olives over the tortilla chips.
Sprinkle the shredded Cheddar evenly over the entire casserole so the cheese melts across the ingredients.
Bake the casserole uncovered for 20 to 30 minutes, until it is hot throughout and the cheese is melted with lightly browned spots.
Let the casserole stand for a few minutes before serving. This brief rest helps the layers settle and makes the dish easier to scoop.
Notes
Drain the beef well to prevent a greasy or watery casserole. Use sturdy tortilla chips and serve soon after baking for a firmer chip layer. Sour cream, salsa, or chopped green onion may be added after baking if desired.
Final Thoughts
This easy Mexican casserole recipe brings a complete, comforting dinner to the table with very little preparation. Seasoned ground beef, refried beans, corn, tomatoes with green chiles, black olives, tortilla chips, and Cheddar create satisfying layers of flavor without requiring elaborate cooking.
Remember the key details: drain the beef well, keep the corn and olives drained, leave the tomatoes undrained, choose sturdy tortilla chips, and bake uncovered at 350°F for 20 to 30 minutes. Let it stand for a few minutes, then serve while the cheese is warm and the chips still have some bite.
Despite its fruit-category label, this is a savory Tex-Mex casserole with no fruit in the ingredient list. It is an easy weeknight favorite that can be finished with sour cream, salsa, or chopped green onion after baking.
