Some recipes stay with a family because they are fancy, but this one has lasted because it is hearty, thrifty, and dependable. Johnny Marzetti has deep Midwestern roots, born from the practical casseroles that fed church suppers, school gatherings, and big tables full of hungry folks. With just a handful of simple ingredients, this oven-baked version turns pantry staples into the kind of comforting supper that tastes like it has been part of the family story for generations.
Serve this casserole with buttered green beans, a crisp lettuce salad, or a dish of stewed tomatoes if you want to lean into that old-fashioned supper table feeling. Garlic bread or a warm dinner roll is always welcome for sopping up the extra sauce, and a plate of dill pickles on the side gives a bright little contrast to all that rich cheese and beef.
Oven Baked 5-Ingredient Johnny Marzetti Casserole
Servings: 6 to 8
Ingredients
1 lb ground beef
12 oz elbow macaroni
1 can (29 oz) tomato sauce
1 onion, diced
2 cups shredded cheddar
Directions
1. Heat the oven to 350°F. Bring a large pot of salted water to a boil, and grease a 9x13-inch glass baking dish.
2. Cook the elbow macaroni for 2 minutes less than the package directions. Drain well and set aside.
3. In a large skillet over medium heat, cook the ground beef and diced onion together until the beef is browned and the onion is soft. Drain the beef well so the casserole does not turn greasy.
4. Stir the tomato sauce into the beef mixture, then add the drained macaroni and mix until everything is evenly coated.
5. Spoon the mixture into the prepared baking dish and spread it into an even layer. Top with the shredded cheddar.
6. Bake for 25 to 30 minutes, until the cheese is bubbly and browned at the edges.
7. Let the casserole rest for 10 minutes before scooping and serving so it holds together nicely.
Variations & Tips
Add a little seasoning: If you keep a well-stocked spice tin, a pinch of salt, black pepper, or Italian seasoning can be stirred into the beef while it browns. The original five-ingredient spirit stays the same, but a little seasoning can round things out nicely.
Change the cheese: Sharp cheddar gives the most old-fashioned flavor, but Colby or a cheddar-monterey jack blend melts beautifully too. If you want a deeper browned top, use cheese freshly shredded from a block rather than the bagged kind.
Make-ahead help: You can assemble the casserole earlier in the day, cover it, and refrigerate it until supper time. If baking straight from the refrigerator, add a few extra minutes so the center heats through properly.
Keep the texture right: Undercooking the pasta by 2 minutes matters here, because it finishes in the oven as it soaks up the tomato sauce. Letting the baked dish rest before serving is just as important, especially if you want neat scoops instead of a loose spoonful.