Easy Air Fryer Ground Beef Casserole (Low Carb)

This Air Fryer Ground Beef Casserole is a cheesy, comforting dinner that comes together in one skillet and one pan. Seasoned ground beef, sweet bell pepper, and a little kick from Rotel get folded into a creamy egg and cheese custard, then baked in the air fryer until the top is golden and bubbly. It is naturally low carb, and the whole thing is on the table in under 30 minutes.

If you love easy beef dinners that taste like real comfort food without a long ingredient list, this one earns a permanent spot in your weeknight rotation.

Why You Will Love This Recipe

• Fast enough for a weeknight: prep takes about 10 minutes and the air fryer does the rest.
• One skillet, one pan: brown the beef, mix the custard, pour, and bake. Cleanup stays simple.
• Naturally low carb: there is no pasta and no bun, so the eggs, cream, and cheese keep it rich and filling.
• Big savory flavor: taco seasoning and Rotel give the beef a warm Tex Mex edge under all that melty cheddar.
• Easy to customize: swap the protein, change the cheese, or stir in extra veggies to make it yours.

Ingredients You Will Need

• Lean ground beef: the savory base of the casserole. If you want a head start, here is how to brown ground beef in the air fryer.
• Taco seasoning: the shortcut to a warm, savory flavor with very little effort.
• Water: loosens the beef mixture so the seasoning coats everything evenly.
• Bell pepper: diced for a little sweetness and color.
• Tomato: fresh and diced, for brightness and juiciness.
• Rotel: canned tomatoes with green chiles that bring gentle heat.
• Eggs: four large eggs set the custard and hold the casserole together.
• Sour cream: adds tang and a soft, creamy texture.
• Heavy cream: makes the custard rich and silky.
• Cheddar cheese: shredded, for that classic melty, golden top.
• Green onion: sliced, for a fresh finish.

How to Make Air Fryer Ground Beef Casserole

Step One: Set a large skillet over medium high heat and add the ground beef. Cook, breaking it apart, until it is browned and no pink remains. Stir in the bell pepper, diced tomato, Rotel, water, and taco seasoning, then let it simmer for 1 to 2 minutes.

Step Two: In a small bowl, whisk the eggs, sour cream, and heavy cream until smooth and fully combined.

Step Three: Spray a baking pan with cooking spray. Spread the beef mixture across the bottom, then pour the egg mixture evenly over the top.

Step Four: Place the pan in the air fryer and set the temperature to 300°F. Cook for 15 to 18 minutes, until the center is set.

Step Five: When the casserole is almost done, sprinkle the shredded cheddar over the top and return it to the air fryer for a few minutes, just until the cheese melts. Finish with sliced green onion and serve warm.

Recipe Tips for the Best Results

• Pick a pan that fits: a 7 inch round or an 8 by 8 inch square pan works in most air fryer baskets without crowding.
• Check the center, not the clock: air fryers vary, so the casserole is ready when the top is golden and the middle is set. A toothpick in the center should come out clean.
• Let it rest: give the casserole a few minutes out of the air fryer so it firms up and slices cleanly.
• Go heavy on the cheese: add an extra handful in the last few minutes if you want a bubblier, cheesier top.
• Drain if needed: if your beef renders a lot of fat, drain it before adding the custard so the casserole stays firm.

Variations and Substitutions

• Dial up the spice: use hot Rotel or add a pinch of cayenne for more heat.
• Switch the protein: ground turkey or ground chicken both work well. Adjust the seasoning to taste, since they are milder than beef.
• Add more veggies: stir in spinach, zucchini, or mushrooms for extra nutrition and bulk.
• Change the cheese: pepper jack adds heat, while a Mexican blend leans into the Tex Mex flavor.

Storage, Freezing, and Reheating

• Storing: cool the casserole completely, then keep it in an airtight container in the refrigerator for up to 3 days.
• Freezing: wrap the cooled casserole tightly in plastic wrap and foil, or use a freezer safe container, and freeze for up to 3 months.
• Reheating: warm individual portions in the air fryer at 350°F for 8 to 10 minutes, or microwave for 2 to 3 minutes until heated through.

What to Serve With Ground Beef Casserole

This casserole is rich and savory, so it pairs beautifully with something fresh or starchy on the side. A crisp spicy Caesar salad keeps things light, while air fryer roasted vegetables or air fryer ranch carrots add color and nutrition.

If you want a heartier plate, serve it alongside air fryer mashed potatoes or a warm garlic bread spread. For a Tex Mex spin on the whole meal, an air fryer Mexican rice casserole rounds it out nicely.

Frequently Asked Questions

Can I use ground turkey or chicken instead of beef? Yes. Ground turkey or chicken both work. They are milder, so taste and adjust the seasoning before baking.

Is this casserole low carb? Yes. With no pasta or bun, the carbs stay low. The eggs, cream, and cheese make it filling without them.

Can I make it ahead of time? You can prepare it ahead, keep it covered in the refrigerator, and bake it in the air fryer when you are ready. It is best cooked within 24 hours.

What size pan should I use? A 7 inch round or an 8 by 8 inch square pan fits most air fryers. Make sure it sits in the basket without crowding the sides.

How do I know when it is done? The casserole is done when the top is golden and the center is set. A toothpick inserted in the middle should come out clean.

More Easy Air Fryer Beef Recipes

If this one is a hit, you will love air fryer cheeseburger french fry casserole, crispy air fryer beef chimichangas, and quick frozen hamburgers in the air fryer. For another cozy bake, try the air fryer chicken and broccoli casserole.

More Easy Air Fryer Meals

• Air Fryer Honey Sesame Chicken
• Air Fryer Bacon and Crab Rolls
• Air Fryer Copycat Panera Pepperoni Flatbread
• Frozen Burgers In Air Fryer
• Copycat Olive Garden Chicken and Shrimp Carbonara