Baked Chili Mac Casserole: A Hearty, Cheesy Comfort Food Favorite

When you're craving a warm, filling meal that brings together tender pasta, savory ground beef, rich tomato sauce, and plenty of melted cheese, Baked Chili Mac Casserole is the perfect dish to put on the dinner table. This comforting casserole combines the bold flavors of homemade chili with the familiar goodness of macaroni and cheese, creating a satisfying meal that the whole family can enjoy.

One of the best things about this recipe is its simplicity. Everything starts with a flavorful beef and tomato mixture seasoned with chili powder, garlic, onion, and a touch of cumin. Elbow macaroni is cooked until just tender, then combined with the sauce and topped with a generous layer of shredded cheese. After a short trip to the oven, the casserole emerges bubbling around the edges, with a golden, cheesy top and a delicious aroma that fills the kitchen.

Whether you're preparing a weeknight family dinner, feeding a crowd, or looking for a make-ahead meal for a busy day, this Baked Chili Mac Casserole is a reliable choice. It's hearty, budget-friendly, easy to customize, and made with everyday ingredients you may already have in your kitchen.

Why You'll Love This Baked Chili Mac Casserole

This recipe brings together the best parts of two classic comfort foods. The macaroni makes every serving filling, while the seasoned beef and tomato sauce provide a rich, chili-inspired flavor. Melted cheddar cheese ties everything together, adding a creamy, savory finish.

Another reason to love this casserole is its versatility. You can add beans for extra texture and protein, include vegetables to make the dish more colorful, or adjust the seasonings to suit your preferred level of heat. It's also an excellent way to prepare dinner ahead of time because the casserole can be assembled in advance and baked when you're ready to eat.

Best of all, the recipe doesn't require complicated cooking techniques. With a little preparation and a few simple steps, you can create a homemade meal that tastes comforting and satisfying without spending the entire evening in the kitchen.

Ingredients You'll Need

This recipe makes approximately 6 servings.

For the Casserole

• 1 pound ground beef

• 2 cups uncooked elbow macaroni

• 1 medium yellow onion, finely chopped

• 3 cloves garlic, minced

• 1 can (15 ounces) tomato sauce

• 1 can (14.5 ounces) diced tomatoes, preferably undrained

• 1 can (15 ounces) kidney beans, drained and rinsed (optional)

• 2 cups shredded cheddar cheese

• 1 tablespoon olive oil, if needed

• 1/2 cup beef broth or water

• 2 tablespoons tomato paste

• 1 tablespoon chili powder

• 1 teaspoon ground cumin

• 1 teaspoon paprika

• 1/2 teaspoon dried oregano

• 1/2 teaspoon salt, or to taste

• 1/2 teaspoon black pepper

• 1/4 teaspoon crushed red pepper flakes, optional

• 2 tablespoons chopped fresh parsley or green onions for garnish, optional

Ingredient Notes

Ground beef: Choose lean or regular ground beef according to your preference. Lean beef keeps the casserole from becoming overly greasy, while regular ground beef offers a richer flavor. Drain excess fat after browning if necessary.

Elbow macaroni: This classic pasta shape holds the sauce beautifully. Penne, small shells, or rotini can also work if that's what you have available.

Tomato sauce and diced tomatoes: These create the rich, savory base that coats the beef and pasta. Tomato paste adds depth and helps the sauce develop a more concentrated flavor.

Cheddar cheese: Sharp cheddar provides a strong, delicious flavor and melts beautifully over the casserole. For an extra creamy finish, you can combine cheddar with Monterey Jack or mozzarella.

Kidney beans: Beans are optional, but they give the casserole a traditional chili-inspired character. Black beans or pinto beans are also good alternatives.

Chili powder and cumin: These spices create the signature chili flavor. If you prefer a milder casserole, reduce the chili powder and leave out the red pepper flakes.

How to Make Baked Chili Mac Casserole Step by Step

Step 1: Preheat the Oven and Prepare the Baking Dish

Begin by preheating your oven to 375°F (190°C).

Lightly grease a 9-by-13-inch baking dish with cooking spray or a small amount of oil. This helps prevent the pasta from sticking and makes serving easier once the casserole is baked.

Set the prepared dish aside while you cook the pasta and prepare the beef mixture.

Step 2: Cook the Macaroni

Bring a large pot of salted water to a boil. Add the elbow macaroni and cook according to the package instructions, but stop about 1 to 2 minutes before it reaches full tenderness.

The pasta should be slightly firm in the center because it will continue cooking in the oven. Overcooking it at this stage can result in a soft, mushy casserole.

Once the macaroni is ready, drain it thoroughly. Avoid rinsing it unless necessary, since the remaining surface starch helps the sauce cling to the pasta.

Set the macaroni aside while you prepare the chili mixture.

Step 3: Brown the Ground Beef

Place a large skillet or deep frying pan over medium-high heat. Add the ground beef and break it apart with a wooden spoon or spatula.

Cook for approximately 6 to 8 minutes, stirring occasionally, until the beef is browned and no longer pink. If the meat releases a large amount of grease, carefully drain the excess fat before continuing.

Browning the beef properly is an important step because it develops a deeper, more savory flavor. Allowing the meat to make contact with the hot pan instead of stirring constantly also helps it brown rather than steam.

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