Old Fashioned 5 Ingredient Frito Chili Pie Casserole

This old-fashioned Frito chili pie casserole is a classic comfort food recipe that brings everyone to the table. Made with just 5 simple ingredients, this easy baked chili casserole combines seasoned ground beef, hearty chili with beans, crunchy corn chips, melted cheddar cheese, and onion for a delicious family-friendly dinner.

Inspired by a vintage recipe from 1971, this cheesy Frito pie casserole is perfect for busy weeknight dinners, potlucks, family reunions, and casual get-togethers. The layers of savory chili, tender ground beef, and gooey melted cheese create a warm, satisfying meal with plenty of nostalgic flavor.

Why You’ll Love This Recipe

• Only 5 ingredients: A simple ingredient list makes this an easy, budget-friendly dinner.
• Quick and easy preparation: Minimal prep and straightforward steps make this recipe ideal for busy evenings.
• Family-friendly comfort food: Cheesy chili and crunchy corn chips make a crowd-pleasing combination.
• Perfect for gatherings: This hearty casserole serves 6 and is great for potlucks, reunions, and family dinners.
• Easy to customize: Add jalapeños for heat, extra cheese for richness, or keep the onions on the side for picky eaters.
• Make-ahead convenience: Prepare the beef and chili mixture in advance to save time at dinnertime.

Ingredients

• 1 pound ground beef
• 1 medium onion, diced and divided
• 2 cans (15 ounces each) chili with beans
• 4 cups corn chips, lightly crushed and divided
• 2 cups shredded cheddar cheese, divided

Instructions

1. Preheat the oven to 350°F. Lightly grease a 9 × 13-inch baking dish.
2. Brown the ground beef in a large skillet with half the diced onion over medium heat. Cook until the beef is no longer pink and the onion softens. Drain excess grease.
3. Stir in the canned chili with beans and heat for 2–3 minutes.
4. Spread half the crushed corn chips across the bottom of the prepared baking dish. Add the chili and beef mixture, then sprinkle with 1 cup of shredded cheddar cheese.
5. Add the remaining corn chips, the rest of the cheddar cheese, and the remaining diced onion.
6. Bake uncovered for 20–25 minutes, until the casserole is bubbling and the cheese has melted. Let it rest for 5 minutes before serving.

Helpful Tips for the Best Frito Chili Pie Casserole

• Keep the topping crunchy: Add the final layer of corn chips during the last 5 minutes of baking.
• Make it spicy: Use spicy chili or add sliced jalapeños or a pinch of cayenne pepper.
• Prepare ahead: Cook the beef and chili mixture up to one day in advance and refrigerate. Assemble and bake when ready, allowing extra time if the filling is cold.
• Serve it with simple sides: Pair this hearty casserole with a crisp green salad, coleslaw, or steamed green beans.
• Store leftovers properly: Refrigerate leftovers in an airtight container and enjoy within 3–4 days. Reheat thoroughly before serving.