Hamburger Macaroni Casserole is ground beef, elbow macaroni, diced tomatoes, and tomato sauce baked together under a layer of sharp cheddar and mozzarella. It feeds six people from one pan, costs very little, and reheats well — which is the honest reason most people make it on a Sunday.
Why this recipe works
Two things actually matter here. First, the pasta goes into the casserole already cooked to al dente — not raw, not fully soft. It finishes cooking in the oven while absorbing the tomato sauce, so it stays firm instead of turning to mush. Second, the smoked paprika goes in with the beef while it browns, not stirred in at the end. Fat carries fat-soluble flavor compounds, so blooming the spice in the rendered beef fat distributes it evenly through the whole dish rather than leaving it sitting on top.
Troubleshooting
- Casserole is watery after baking: You didn’t drain the canned diced tomatoes. Even a small can holds a surprising amount of liquid. Drain it before adding, or the sauce never thickens properly in the oven.
- Cheese on top is greasy and broken: The oven temp crept too high or the casserole sat uncovered the entire bake. Cover with foil for the first 20 minutes, then uncover to melt and brown the cheese — this keeps the fat from separating out of the cheddar.
- Beef is clumped in large chunks: It wasn’t broken up finely enough during browning. Use a wooden spoon or a meat chopper to work it into small, even crumbles while it cooks — large chunks make the texture uneven in every bite.
- Pasta is mushy: It was overcooked before it went into the pan. Pull it from the boiling water 2 minutes before the package says it’s done. It will finish in the oven.
- Flavor tastes flat: The beef wasn’t seasoned during browning. Salt added only to the sauce at the end doesn’t penetrate the meat. Season the beef in the skillet before it finishes cooking.
Leftovers and meal prep
This casserole holds up better than most pasta dishes after a day in the fridge because the sauce continues to absorb into the macaroni overnight, making it denser and easier to portion. Store leftovers in an airtight container for up to 4 days in the refrigerator. To freeze, let it cool completely, then portion into individual servings in freezer-safe containers — it keeps for up to 3 months. Reheat refrigerated portions in the microwave with a splash of water or broth stirred in to loosen the sauce, about 2 minutes on medium power. Frozen portions reheat best in a 350°F oven covered with foil for 25–30 minutes, or thaw overnight in the fridge first and microwave as above. Skip the egg in the mix — it makes the texture gummy when reheated and adds nothing the cheese doesn’t already handle. If you’re building a week of lunches, this doubles cleanly: use a 9×13 and a smaller 8×8 pan at the same time, same oven, same temperature.
Hamburger Macaroni Casserole
Ingredients
- 1 pound ground beef (85% lean) choose fresh, local beef if available
- 1 cup yellow onion finely chopped
- 3 cloves garlic minced fresh
- 2 cups elbow macaroni uncooked
- 1 tablespoon olive oil or other neutral oil
- 1 teaspoon kosher salt
- ½ teaspoon black pepper freshly ground
- 1 teaspoon smoked paprika adds a subtle depth
- 1 can diced tomatoes 14.5 oz can, with juices
- 1 can tomato sauce 15 oz
- 1 ½ cups cheddar cheese sharp, shredded
- ½ cup mozzarella cheese shredded
- ¼ cup fresh parsley chopped, for garnish
Instructions
- Preheat your oven to 375°F (190°C).
- Bring a large pot of salted water to a boil. Cook macaroni until just shy of al dente (about 7 minutes). Drain and set aside.
- Meanwhile, in a large skillet over medium heat, warm olive oil and sauté chopped onions until translucent, about 5 minutes. Add garlic and cook until fragrant, about 1 minute.
- Add ground beef, breaking it up with a spoon. Cook until browned and no longer pink (about 6–8 minutes). Season with salt, pepper, and smoked paprika.
- Stir in diced tomatoes and tomato sauce. Bring to a simmer for about 8 minutes to meld flavors.
- Add the cooked macaroni, stirring thoroughly to combine with the sauce. Remove from heat.
- Transfer the mixture to a greased 9x13-inch casserole dish. Top evenly with cheddar and mozzarella cheese.
- Bake uncovered for 15 minutes, or until cheese is bubbly and lightly golden. Let it rest for 5 minutes before garnishing with parsley and serving.
Notes
- For a spicier twist, swirl in 1 teaspoon of chili flakes with the paprika.
- Substitute ground turkey or plant-based meat for a leaner version.
- To deepen flavor, use fire-roasted tomatoes.
Nutrition
Your questions, answered
Can I assemble this casserole the night before and bake it the next day?
Yes — assemble it fully, cover tightly with foil, and refrigerate overnight. Take it out of the fridge 20 minutes before baking so it isn’t stone cold going into the oven, which would extend the bake time unevenly.
What internal temperature should the ground beef reach?
Ground beef needs to hit 160°F (71°C) internally. Since the beef is browned in a skillet before baking, it should reach that temperature during the stovetop step — don’t rely on the oven bake alone to cook raw or undercooked meat through.
Can I use a different pasta shape instead of elbow macaroni?
Small, sturdy shapes work fine — rotini, small shells, or ditalini all hold up well. Avoid long pasta or anything too thin like angel hair; it breaks apart and makes the texture stringy.
Can I substitute ground turkey or chicken for the beef?
You can, but poultry must reach 165°F (74°C) internally — do not serve it pink. Ground turkey is leaner, so add a tablespoon of olive oil to the skillet when browning to prevent it from drying out.
How do I keep the casserole from drying out when reheating a large portion in the oven?
Add 2–3 tablespoons of water or beef broth over the top before covering with foil, then reheat at 350°F until the center hits 165°F, about 20–25 minutes. Without added moisture, the pasta on top dries out and gets hard before the center is hot.