My busy neighbor dropped this off when I was sick, and it is pure comfort food. Can't believe it's just 3 ingredients.

This oven baked 3-ingredients chili mac casserole is exactly the kind of thing neighbors bring when the porch light is off and the house is too quiet. Around here in the rural Midwest, we’ve always believed a warm pan of something cheesy can do as much good as any medicine.

This little casserole is pure comfort food and almost embarrassingly simple: just elbow macaroni, a good hearty beef chili, and a blanket of sharp cheddar. It bakes up bubbly and golden in a disposable foil pan, easy to tote across the road to a sick friend or tuck into the oven on a day when you don’t have the energy for much fuss. It tastes like somebody cares about you, and you wouldn’t guess it came from only three ingredients.

Serve this chili mac casserole piping hot right out of the foil pan, with a simple green salad or some sliced cucumbers and tomatoes if you have them. Warm dinner rolls, cornbread, or even just buttered toast are perfect for soaking up the extra sauce around the edges. A spoonful of sour cream or a few pickled jalapeño slices on top are nice if they’re handy, but it’s plenty satisfying on its own. For a sick day or a cold evening, a mug of hot tea or cocoa alongside makes it feel even more like a hug in a pan.

Oven Baked 3-Ingredients Chili Mac Casserole

Servings: 6

Ingredients

12 oz dry elbow macaroni
4 cups hearty canned or leftover beef chili (with beans or without)
3 cups shredded sharp cheddar cheese, divided

Directions

Preheat your oven to 375°F (190°C). Set a rack in the center of the oven. Place a disposable 9x13-inch foil baking pan on a sturdy baking sheet for easier handling.

Bring a large pot of salted water to a boil. Add the elbow macaroni and cook just until barely al dente, 1–2 minutes less than the package directions, since it will continue cooking in the oven. Drain the pasta well.

Return the drained macaroni to the warm pot. Add the beef chili and 2 cups of the shredded sharp cheddar cheese. Stir until the macaroni is evenly coated and the cheese is starting to melt into the chili. The mixture should look saucy and loose; this helps keep the casserole moist as it bakes.

Pour the chili mac mixture into the foil baking pan, spreading it into an even layer and gently pressing it into the corners so it bakes uniformly.

Sprinkle the remaining 1 cup of shredded sharp cheddar cheese evenly over the top, covering the surface from edge to edge so you get a full, melted cheese crust.

Cover the foil pan loosely with another sheet of foil, tenting it slightly so it doesn’t stick to the cheese. Bake in the preheated oven for 20 minutes, until the casserole is heated through and bubbling around the edges.

Carefully remove the top foil. Return the uncovered pan to the oven and bake for another 10–15 minutes, or until the cheese on top is fully melted, bubbling, and starting to turn a light golden brown in spots.

Take the baking sheet and foil pan out of the oven and let the casserole rest for about 10 minutes. This helps the sauce thicken slightly so it scoops neatly. Serve warm straight from the foil pan, and if you’re taking it to a neighbor, cover it back up and tuck a spoon or ladle alongside.


Variations & Tips

If you like a little kick, choose a spicy beef chili or stir in a pinch of crushed red pepper with the chili and pasta before baking. Any sturdy canned or homemade beef chili will work, with or without beans; just be sure it’s thick and hearty so the casserole doesn’t turn soupy. You can swap part of the sharp cheddar for pepper jack or Colby if that’s what you keep on hand, but try to keep most of it sharp cheddar for that classic, comforting flavor.

For a slightly creamier texture, reserve a small splash of the pasta cooking water and stir it in with the chili and cheese; it helps the sauce cling to the noodles. If you’re cooking for a smaller household, divide the mixture between two smaller foil pans, bake one now, and cool and freeze the other (tightly wrapped) for a future busy or under-the-weather day; reheat from thawed, covered, until hot and bubbly.

To keep the spirit of a simple three-ingredient neighborly dish, resist the urge to add too many extras—this recipe shines because it’s straightforward, filling, and easy enough for anyone to put together when someone they love needs a warm meal.