This oven baked Amish fiesta nacho cheese macaroni is the kind of practical casserole-style dinner that earns a regular spot in a busy weeknight rotation. It uses a short ingredient list, skips the step of boiling the pasta first, and bakes everything together in one pan for a creamy, comforting dish with a bold cheesy flavor. Recipes in the Amish-style casserole tradition often lean on pantry staples and simple assembly, and this version follows that spirit while giving it a Tex-Mex-inspired twist with jarred fiesta nacho cheese sauce.
Serve this rich macaroni with a crisp green salad, steamed green beans, roasted broccoli, or simple sliced tomatoes to balance the creamy cheese sauce. If you want to lean into the casual comfort-food feel, pair it with garlic bread, buttered rolls, or a spoonful of salsa and a scattering of sliced jalapeños on top. It also works well alongside rotisserie chicken or browned ground beef if you want to turn it into a heartier supper.
Oven Baked 4-Ingredient Amish Fiesta Nacho Cheese Macaroni
Servings: 6
Ingredients
2 cups uncooked elbow macaroni
1 jar (about 15 ounces) fiesta nacho cheese sauce
2 cups milk
1 cup water
Directions
1. Preheat the oven to 350°F and lightly grease an 8x8-inch or similar small baking dish.
2. Add the uncooked elbow macaroni to the baking dish and spread it into an even layer.
3. Pour the fiesta nacho cheese sauce over the macaroni, then add the milk and water. Stir well so the pasta is evenly coated and submerged as much as possible.
4. Cover the dish tightly with foil and bake for 30 minutes.
5. Remove the foil, stir the macaroni well, then return it to the oven uncovered and bake for 20 to 25 minutes more, or until the pasta is tender and the top is hot and lightly browned in spots.
6. Let the dish rest for 5 to 10 minutes before serving so the sauce can thicken slightly.
Variations & Tips
Add protein: Stir in 1 to 2 cups of cooked shredded chicken, browned ground beef, or crumbled cooked sausage before baking if you want a more substantial one-dish meal.
Make it spicier: Add diced pickled jalapeños, a pinch of chili powder, or a few spoonfuls of salsa to the dish before baking for extra heat and a more pronounced fiesta flavor.
Watch the liquid level: Because oven temperatures and pasta brands vary, check the casserole when you remove the foil. If it looks dry before the pasta is tender, stir in a small splash of hot milk or water and continue baking.
For a browned top: If you like a little color and extra baked texture, leave the dish uncovered for the last several minutes and, if needed, place it under the broiler briefly while watching closely.
Rest before serving: This macaroni will seem quite loose straight from the oven, but a short rest helps the starch and cheese sauce settle into a creamier, scoopable consistency.