This oven baked 3-ingredient tomato soup macaroni bake is pure Midwestern comfort food and exactly the kind of thing my grandmother would throw together every spring when the days were still a little chilly but everyone was busy. It’s simple pantry cooking at its best: just elbow macaroni, canned tomato soup, and a blanket of shredded cheese all baked together until the pasta is tender and the top is golden and bubbly. If you’re juggling work, kids’ activities, or just a long day, this is the kind of no-fuss dinner that feels nostalgic, warm, and cozy without keeping you in the kitchen all night.
I like to serve this tomato soup macaroni bake with a big green salad tossed in a tangy vinaigrette to balance the richness of the cheese. Garlic bread or buttered toast soldiers are perfect for scooping up the saucy edges from the casserole dish. If you want to keep it really simple, add some steamed or roasted veggies on the side—broccoli, green beans, or a quick sheet pan of mixed frozen vegetables all work well. A sprinkle of black pepper or red pepper flakes at the table lets everyone adjust the heat to their own taste.
Oven-Baked 3-Ingredient Tomato Soup Macaroni BakeServings: 4-6
Ingredients
3 cups dry elbow macaroni (about 12 ounces)
3 cans (10.5 ounces each) condensed tomato soup
3 cups shredded mild or medium cheddar cheese, divided
Directions
Preheat your oven to 375°F (190°C). Lightly grease a 9x13-inch clear glass casserole dish so the pasta doesn’t stick.
Cook the elbow macaroni in a large pot of well-salted boiling water for 2–3 minutes less than the package directions for al dente. You want it quite firm since it will continue cooking in the oven. Drain well.
In the same pot (to save dishes), add the drained macaroni and pour in all three cans of condensed tomato soup. Do not add water or milk—the soup should be thick. Stir until every piece of pasta is coated and the mixture looks saucy but not runny.
Stir in 2 cups of the shredded cheddar cheese, reserving the remaining 1 cup for the top. Mix until the cheese is evenly distributed through the tomato-coated macaroni.
Pour the tomato-cheese macaroni mixture into the prepared clear glass casserole dish, spreading it into an even layer so it bakes uniformly.
Sprinkle the remaining 1 cup of shredded cheddar over the top, covering the pasta as evenly as you can. Don’t worry if it’s not perfect—those little bare spots get deliciously crispy.
Cover the dish tightly with foil and bake on the middle rack for 20 minutes, until the edges are starting to bubble and the pasta has absorbed some of the sauce.
Carefully remove the foil and return the casserole to the oven. Bake uncovered for another 10–15 minutes, or until the cheese on top is fully melted, bubbling, and starting to turn golden in spots.
Let the macaroni bake rest on the counter for at least 5–10 minutes before serving. This helps it set up a bit so you can scoop out a gooey portion with a big metal spoon and see all that sweet red tomato pasta and bubbling yellow cheese.
Serve straight from the clear glass casserole dish at the table. Store any leftovers in the fridge, tightly covered, and reheat in the oven or microwave until hot all the way through.
Variations & Tips
To keep this true to the spirit of a 3-ingredient, quick-and-comforting dinner, I like to treat seasonings as optional add-ons rather than core ingredients. If you want to dress it up a bit, you can sprinkle the top with black pepper, Italian seasoning, or a pinch of garlic powder before baking. For extra creaminess (and if you don’t mind stretching beyond three ingredients), stir in a splash of milk or a spoonful of sour cream with the tomato soup, or mix in a handful of mozzarella with the cheddar for extra stretch. You can also layer in leftover cooked vegetables (like peas, spinach, or roasted peppers) or diced cooked chicken or ham to make it more filling—just fold them into the pasta and soup mixture before baking. For meal prep, assemble the casserole up to the point of baking, cover tightly, and refrigerate for up to 24 hours; add 5–10 minutes to the covered bake time if starting from cold. Food safety tips: Cool leftovers to room temperature within 1–2 hours, then refrigerate promptly in a shallow container. Eat refrigerated leftovers within 3–4 days, and always reheat until steaming hot in the center (165°F/74°C). If using pre-shredded cheese or cooked add-ins like meat, keep them refrigerated until you’re ready to mix them in, and don’t leave the finished casserole sitting out on the counter for more than 2 hours.
