Name: Easy Macaroni Casserole Recipe
Prep time: 20 min
Cook time: 1 h 40 min
Total time: 2 h
Cuisine: American
Ingredients: 1 lb 93% lean ground turkey; 1 tbsp olive oil; 1 cup chopped onion; 1 medium red pepper, chopped; ¼ cup finely diced celery; ¼ cup finely diced carrots; 1 cup sliced mushrooms; 1 (14.5 oz) can petite diced tomatoes, drained; 2 cups marinara sauce (homemade or jarred); 2 cups water; ½ tsp Italian seasoning; 1 tsp Kosher salt; 8 oz whole wheat elbow macaroni (uncooked); 8 oz shredded mozzarella cheese

Jump to Recipe· 4.1 from 88 reviews

The Easy Macaroni Casserole Recipe is a wonderfully comforting dish that combines lean ground turkey, fresh vegetables, and whole wheat pasta all baked to cheesy perfection. It’s the kind of meal that wraps you in warmth on a chilly evening without demanding hours in the kitchen. From the tender, seasoned turkey to the luscious marinara sauce and melty mozzarella, every bite is a satisfying embrace of flavors and textures. Whether you’re feeding a family or prepping for leftovers, this casserole delivers hearty nutrition alongside incredible taste, making it an instant favorite in any home cook’s rotation.

Ingredients You’ll Need

The image shows multiple clear bowls and a white bowl arranged on a white marbled surface, each holding different ingredients for cooking. There is a clear bowl filled with finely chopped white onions, another with chopped green celery, and a white bowl piled with shredded yellow cheese. A large clear bowl contains raw ground meat, while smaller clear bowls hold diced orange carrots, chopped red bell peppers, and sliced white mushrooms. Two glass measuring cups contain a thick red tomato sauce and water, and a small clear bowl has salt and dried herbs. A white bowl has diced tomatoes in red sauce, and a small white bowl contains yellow cooking oil. An open box spilling uncooked elbow macaroni pasta is also part of the scene. The photo taken with an iphone --ar 4:5 --v 7

These ingredients are simple and wholesome, yet each plays a vital role in building the rich layers of taste and texture you crave in an Easy Macaroni Casserole Recipe. From the lean protein to the vibrant veggies, everything works together to make this dish a true crowd-pleaser.

1 lb 93% lean ground turkey: This lean protein adds a savory base without excess fat, keeping the dish light yet satisfying.

1 tbsp olive oil: Provides a subtle richness and helps sauté the vegetables perfectly.
1 cup chopped onion: Adds natural sweetness and depth of flavor as it softens.
1 medium red pepper, chopped: Brings a pop of color and a touch of sweetness to brighten the casserole.

¼ cup finely diced celery: Offers a gentle crunch and fresh earthiness.
¼ cup finely diced carrots: Adds natural sweetness and vibrant orange hues for visual appeal.
1 cup sliced mushrooms: Introduces an umami richness that makes the casserole even more comforting.

1 (14.5 oz) can petite diced tomatoes, drained: Gives a fresh, tangy note that balances the meat and cheese.
2 cups marinara sauce (homemade or jarred): The heart of the casserole’s saucy goodness, binding all elements with bold tomato flavor.
2 cups water: Ensures the pasta cooks perfectly baked into the casserole’s saucy matrix.

½ tsp Italian seasoning: Adds fragrant herbs that bring an authentic Italian touch.
1 tsp Kosher salt: Enhances every ingredient’s natural flavor without overpowering.
8 oz mozzarella cheese (shredded): Melts beautifully on top, giving the casserole that irresistible gooey finish.

8 oz whole wheat elbows (uncooked): The wholesome pasta base that brings chewy texture and better-for-you fiber.

How to Make Easy Macaroni Casserole Recipe

A black cast iron pan sits on a white marbled surface, filled with several distinct layers of ingredients. Starting from the left, brightly colored diced red, orange, and green bell peppers form one section. Beside the peppers, there are whole diced tomatoes with a bright red color. Next to the tomatoes is a large portion of cooked ground meat, light brown in color. On top of the meat, there are scattered dried herbs and a small amount of white powder, likely seasoning. To the right side of the pan, a neat layer of white, fresh sliced mushrooms is arranged. A woman's hand is shown pouring thick, smooth red tomato sauce from a clear measuring cup into the pan, flowing over the diced tomatoes and peppers. The texture of each ingredient is clear and vibrant, all visible from a top-down view. Photo taken with an iphone --ar 4:5 --v 7

Step 1: Browning the Turkey

Start by heating a large deep non-stick skillet over high heat and brown the ground turkey. Season with a pinch of salt and break it up into small pieces as it cooks. You want the turkey cooked through but tender, with nice slight caramelization to boost the savory flavor. Once done, set the turkey aside on a plate to rest.

Step 2: Sautéing the Vegetables

Add the olive oil to the skillet and reduce heat to medium. Toss in the chopped onion, red pepper, celery, and carrots. Sauté until the vegetables soften and release their aromas, about 6 to 7 minutes. This process helps develop the natural sweetness and creates a wonderful flavor foundation for the casserole.

Step 3: Combining Ingredients and Simmering

Return the browned turkey to the skillet, then add the mushrooms, petite diced tomatoes, marinara sauce, water, Italian seasoning, and kosher salt. Stir everything gently to combine. Bring the mixture to a boil, then reduce to medium-low and let it simmer uncovered for 20 minutes. This step lets the flavors meld beautifully while the mixture thickens slightly.

Step 4: Preparing the Oven and Baking

While the sauce simmers, preheat your oven to 350°F. In a 9×13-inch baking dish, spoon a thin layer of the turkey and vegetable mixture to cover the bottom. Spread the uncooked whole wheat elbows evenly over the sauce layer. Then, pour the remaining sauce over the pasta and sprinkle the shredded mozzarella cheese on top. Cover with foil and bake for 50 to 55 minutes. Once out of the oven, let the casserole stand covered for 15 minutes to set perfectly before serving.

How to Serve Easy Macaroni Casserole Recipe

Garnishes

A sprinkle of freshly chopped basil or parsley adds a fresh, vibrant contrast that brightens the rich casserole beautifully. You can also sprinkle some crushed red pepper flakes if you like a hint of spice to wake up your taste buds.

Side Dishes

This casserole pairs wonderfully with a crisp green salad dressed lightly with lemon vinaigrette to balance the richness. Steamed green beans or roasted asparagus also make excellent vegetable sides that add texture and elevate the meal’s nutritional profile.

Creative Ways to Present

Serve this casserole in rustic mason jars for casual gatherings or spoon it into shallow bowls topped with extra shredded cheese for a cozy family-style presentation. Add a warm garlic breadstick on the side to soak up every last bit of the delicious sauce for a full comfort food experience.

Make Ahead and Storage

Storing Leftovers

Store leftover Easy Macaroni Casserole Recipe in an airtight container in the refrigerator for up to 3 days. The flavors actually deepen after resting, making leftovers an easy go-to lunch or dinner that reheats nicely.

Freezing

This casserole freezes beautifully. Portion it out into freezer-safe containers and freeze for up to 3 months. For best results, thaw overnight in the fridge before reheating to maintain a creamy texture.

Reheating

Reheat leftovers in the microwave or cover with foil and warm in a preheated 350°F oven until heated through, about 15-20 minutes. If reheating from frozen, allow extra time for it to warm evenly. You can add a sprinkle of fresh cheese before warming to keep it luscious and gooey.

FAQs

Can I use ground beef instead of ground turkey?

Absolutely! Ground beef will give the casserole a richer flavor and slightly different texture, but the recipe works perfectly well with either. For a leaner option, choose ground sirloin or lean ground beef.

Do I need to pre-cook the pasta?

Nope! One of the best parts of this Easy Macaroni Casserole Recipe is that the uncooked whole wheat elbows bake right in the sauce, absorbing all those gorgeous flavors while cooking perfectly in the oven.

Can I make this casserole vegetarian?

Yes, you can easily omit the ground turkey and add extra mushrooms, beans, or a plant-based ground substitute. Just ensure you adjust seasoning and liquid accordingly so the casserole stays moist and flavorful.

What can I substitute for mozzarella cheese?

Provolone, fontina, or even a sharp cheddar work nicely if you want a different cheese profile. For a lighter version, reduced-fat cheeses are fine, though they may alter the creaminess slightly.

How spicy is the casserole?

This casserole is mild and kid-friendly, but you can easily add crushed red pepper flakes or a pinch of cayenne pepper during simmering if you want a bit of heat. It’s very customizable to your spice preference.

Final Thoughts

You really can’t go wrong with this Easy Macaroni Casserole Recipe. It’s a heartwarming, nutritious, and effortlessly delicious dish that fits into busy lifestyles without sacrificing comfort or flavor. I encourage you to try making it soon — it’s a crowd-pleaser that will quickly become a beloved staple in your home, just like it is in mine.